- Under 14 CFR Part 107, what is the maximum altitude a remote pilot may operate a small unmanned aircraft without special permission?
- 100 ft AGL
- 400 ft AGL
- 600 ft AGL
- 1,000 ft AGL
Correct answer: 400 ft AGL
The ceiling is 400 ft AGL. 14 CFR 107.51(b) bars a small unmanned aircraft from flying higher than 400 feet above the ground, and lifts that ceiling only when the aircraft stays within a 400-foot radius of a structure. 100 ft AGL is far below any figure Part 107 sets and would forbid flying the rule expressly allows. 600 ft AGL is above the ceiling, in the band kept clear as a buffer for manned traffic. 1,000 ft AGL confuses this limit with the manned minimum safe altitude over congested areas in 91.119.
- What is the minimum age required to be eligible for a Remote Pilot Certificate under Part 107?
Correct answer: age 16
The floor is age 16. Under 14 CFR 107.61 an applicant for a remote pilot certificate with a small UAS rating must be at least 16 years old at the time of application. Age 13 is a consumer-account threshold and has no place in the airman certification rules. Age 18 is the minimum for a private pilot certificate, and age 21 is the minimum for an airline transport pilot certificate; neither governs Part 107.
- Under current Part 107 rules, how often must a Remote Pilot in Command complete recurrent training to stay current?
- Every 12 months, after a knowledge retest
- Every 48 months, after a medical renewal
- Every 36 months, after a written sign-off
- Every 24 months, after a course refresher
Correct answer: Every 24 months, after a course refresher
Currency is kept every 24 months, after a course refresher, because 14 CFR 107.65 requires the free online recurrent training within the previous 24 calendar months while the certificate itself never expires. Every 12 months overstates the interval, and no knowledge retest has been offered since April 2021. Every 48 months understates it, and Part 107 requires no medical certificate or renewal of any kind. Every 36 months also understates it, and no written sign-off forms any part of remote pilot currency.
- A remote pilot is planning to fly their small unmanned aircraft over a densely populated area. What must the pilot do to comply with Part 107 regulations?
- Obtain a written waiver from the FAA
- Submit a standard NOTAM to the ARTCC
- Request a routine COA from the LAANC
- Notify a control tower over the CTAF
Correct answer: Obtain a written waiver from the FAA
The pilot must obtain a written waiver from the FAA. 14 CFR 107.39 forbids operating over a human being who is not a participant and not under cover, so a flight across a crowded area is unlawful unless the FAA grants relief. A NOTAM to the ARTCC is a notice to other airmen and grants no permission; Part 107 does not require one. A COA is the authorization path for public aircraft operators, and LAANC issues airspace authorizations rather than COAs, so neither applies to a civil operation over people. A call to a tower over the CTAF reaches nobody who can relieve the operator of 107.39.
- What action is required if an accident results in serious injury to a person or loss of consciousness during a Part 107 operation?
- Leave a written notice with the DOT within 24 hours
- File a written report with the FAA within 10 days
- Place a written record with the FSDO within 30 days
- Log a written entry with the NTSB within 48 hours
Correct answer: File a written report with the FAA within 10 days
The remote pilot must file a written report with the FAA within 10 days, because 14 CFR 107.9 sets a 10-calendar-day deadline for any operation causing serious injury, loss of consciousness, or at least $500 in damage to property other than the aircraft. Leaving a written notice with the DOT within 24 hours names a department that receives no such report. Placing a written record with the FSDO within 30 days sends it to a certification and enforcement office on a deadline Part 107 never sets. And logging a written entry with the NTSB within 48 hours borrows Part 830, which covers a different class of aircraft accidents.
- Under what condition may a Remote Pilot in Command operate a small UAS in Class C airspace without ATC authorization?
- Only when a flight under 400 feet skips ATC authorization
- Once every tower ends the ATC authorization for one night
- Never; an ATC authorization is always a strict legal rule
- Whenever a plan omits all Class C ATC authorization needs
Correct answer: Never; an ATC authorization is always a strict legal rule
There is no such condition: never; an ATC authorization is always a strict legal rule. 14 CFR 107.41 bars operation in Class B, C, or D airspace, or within the lateral boundaries of the surface area of Class E designated for an airport, unless the FAA has granted prior authorization, which for most sites is issued through LAANC or the FAA DroneZone portal. Holding a flight under 400 feet satisfies the separate altitude ceiling of 107.51 and does nothing about 107.41. Tower hours are irrelevant: the airspace keeps its Class C classification for one night and for every night after, and the authorization requirement stays with it. A plan that omits all Class C entry describes an operation outside Class C altogether, so it answers a different question than the one asked.
- What is the maximum allowable ground speed for a small unmanned aircraft under Part 107?
Correct answer: 87 kt
The maximum is 87 kt. 14 CFR 107.51(a) caps the groundspeed of a small unmanned aircraft at 87 knots, a figure the rule itself glosses as 100 miles per hour. 40 kt, 50 kt and 60 kt all sit below that cap and match no limit in the regulation; a pilot held to any of them would be flying legally but would be answering with a speed Part 107 never names.
- According to Part 107, who is responsible for ensuring that a small unmanned aircraft will not endanger the safety of the national airspace?
- The remote pilot in command for the whole operation
- The visual observer on watch for the entire mission
- The manufacturer of the airframe under its warranty
- The tower controller on shift for the local airport
Correct answer: The remote pilot in command for the whole operation
This duty falls on the remote pilot in command for the whole operation. 14 CFR 107.19 makes that person directly responsible for, and the final authority as to, the operation of the small unmanned aircraft, and requires the flight to create no undue hazard. A visual observer on watch assists with see-and-avoid under 107.33 but holds no such authority. The manufacturer warrants the equipment rather than the conduct of any particular flight. And a tower controller separates manned traffic and issues airspace authorizations without ever assuming command of the aircraft.
- When is a remote pilot allowed to deviate from Part 107 regulations?
- For a prepared demonstration over a private pasture
- In response to a sudden in-flight emergency onboard
- Aboard a drone beneath the half-pound weight cutoff
- Within uncontrolled airspace far from a busy runway
Correct answer: In response to a sudden in-flight emergency onboard
A deviation is lawful in response to a sudden in-flight emergency onboard. 14 CFR 107.21 lets the remote pilot in command depart from any rule of this part to the extent needed to meet that emergency, and requires a written report to the FAA upon request. A demonstration flight over private land is an ordinary operation carrying every rule. Weight alone grants nothing: an aircraft under half a pound flown for a non-recreational purpose is still bound by Part 107. Uncontrolled airspace removes the authorization requirement of 107.41 but leaves the rest of the part fully in force.
- What is the maximum weight a small unmanned aircraft can weigh, including payload, under Part 107?
Correct answer: 55 lb
The limit is 55 lb. Part 107 applies to a small unmanned aircraft weighing less than 55 pounds at takeoff, counting everything carried on board, so 55 lb is the dividing line. 35 lb and 45 lb are below it and would wrongly push aircraft the rule covers outside it. 65 lb is above the line, in the range that must be certificated and operated under a different path than Part 107.
- In Class B airspace, what is required before operating a small unmanned aircraft?
- A filed NOTAM bulletin authorization for the Class B airspace
- A FSDO endorsed waiver authorization for the Class B airspace
- An annual AMA registry authorization for the Class B airspace
- An advance ATC granted authorization for the Class B airspace
Correct answer: An advance ATC granted authorization for the Class B airspace
What is required is an advance ATC granted authorization for the Class B airspace. 14 CFR 107.41 bars operation in Class B airspace unless the operator holds prior authorization from Air Traffic Control, issued for most sites through LAANC or the FAA DroneZone portal. A filed NOTAM bulletin only advertises an activity to other airmen and grants no permission at all; Part 107 does not require one. A waiver is issued by FAA headquarters for relief from a specific operating rule and is never endorsed by a FSDO, and no waiver is needed merely to enter Class B. An annual AMA registry entry is a private club membership with no regulatory force whatever.
- What is the vertical limit of Class G airspace?
- 14,500 ft MSL, the Class G roof
- 1,200 ft AGL, the Class E shelf
- 18,000 ft MSL, the Class A base
- 10,000 ft MSL, the Class B peak
Correct answer: 14,500 ft MSL, the Class G roof
Class G reaches 14,500 ft MSL, the Class G roof, above which Class E takes over across the continental United States. 1,200 ft AGL is the Class E shelf that commonly overlies Class G, so it is where Class G usually stops in practice rather than the vertical limit the airspace is defined to have. 18,000 ft MSL is the Class A base, the floor of positive control airspace, and 10,000 ft MSL is a typical Class B peak over a major airport; neither figure bounds Class G.
- What is a characteristic of Class C airspace?
- It blocks IFR traffic from the outermost shelf
- It requires ATC approval to enter the airspace
- It surrounds fields with an FAA contract tower
- It permits radio silence for VFR drone flights
Correct answer: It requires ATC approval to enter the airspace
The defining trait is that it requires ATC approval to enter the airspace: a manned pilot must establish two-way radio communication before entry, and a remote pilot needs a prior FAA authorization under 107.41. IFR traffic is not blocked from the outer shelf; the shelf exists precisely so that arriving instrument traffic is contained. Class C surrounds moderately busy airports with a radar approach control, not the small fields served by a contract tower, which is a Class D arrangement. Radio silence is exactly what Class C does not permit, whatever the flight rules in use.
- When operating in uncontrolled airspace (Class G), at what altitude must a small UAS remain?
- Up to 500 ft AGL, the 91.119 altitude floor
- Up to 1,200 ft AGL, the 71.71 airspace base
- Up to 400 ft AGL, the 107.51 airspace limit
- Up to 700 ft AGL, the 107.31 visual ceiling
Correct answer: Up to 400 ft AGL, the 107.51 airspace limit
A small UAS in Class G must stay up to 400 ft AGL, the 107.51 airspace limit, and may go higher only while flying within 400 feet of a structure. 91.119 sets minimum safe altitudes for manned flight over open country and raises no ceiling for an unmanned aircraft. Part 71.71 describes where Class E airspace begins, often 1,200 feet AGL, which marks where Class G ends rather than how high a small UAS may fly. And 107.31 is the visual line of sight rule, while 700 feet is the Class E floor near many instrument airports, so neither sets an altitude limit for the aircraft.
- What is the primary purpose of a temporary flight restriction (TFR)?
- To forewarn nearby pilots of severe turbulence
- To reserve one corridor for military maneuvers
- To prohibit hobby drones from federal parkland
- To create safe airspace for emergency aircraft
Correct answer: To create safe airspace for emergency aircraft
The purpose is to create safe airspace for emergency aircraft. A temporary flight restriction closes a defined volume so that firefighting, law enforcement, disaster relief and similar operations, and the people beneath them, are protected from other traffic. Turbulence and other hazards are passed by AIRMET, SIGMET and PIREP, which advise rather than restrict. A standing volume set aside for military activity is a restricted or military operations area, defined on the chart and not temporary. Park overflight limits come from the land-managing agency rather than from a TFR.
- What type of airspace is Class E typically associated with?
- Controlled airspace outside Class A, B, C, or D
- Uncontrolled airspace under Class A, B, C, or D
- Terminal airspace near Class B, C, and D towers
- Special airspace charted like Class A, B, and C
Correct answer: Controlled airspace outside Class A, B, C, or D
Class E is controlled airspace outside Class A, B, C, or D. It is the residual controlled class, beginning at 700 or 1,200 feet AGL in most places and extending up to but not including 18,000 feet MSL. Uncontrolled airspace under the lettered classes is Class G, the opposite of what Class E is. Terminal airspace near towered fields describes Class B, C and D themselves, not the class that fills the gaps between them. Special use airspace is a separate chart overlay, such as a restricted or alert area, and is not an airspace class at all.
- When flying in controlled airspace, such as Class D airspace, what must a remote pilot do to remain compliant?
- Obtain the local airport's clearance for the Class D airspace
- Acquire an advance ATC authorization for the Class D airspace
- Report the aircraft's ADS-B position for the Class D airspace
- Provide a written NOTAM notification for the Class D airspace
Correct answer: Acquire an advance ATC authorization for the Class D airspace
To stay compliant the pilot must acquire an advance ATC authorization for the Class D airspace, which 14 CFR 107.41 demands before any operation in Class B, C or D airspace or in the surface area of Class E designated for an airport, and which LAANC normally issues. The airport operator controls the ground it owns rather than the airspace above it, so its clearance authorizes nothing aloft. Reporting an ADS-B position only makes the aircraft visible to other traffic and carries no airspace privilege. And a NOTAM notification announces an activity to other airmen without granting permission to enter.
- What is the key difference between Class D and Class E airspace?
- Class D reaches up to 18,000 feet; Class E does not
- Class D carries Mode C equipment; Class E does not
- Class D needs two-way ATC contact; Class E does not
- Class D uses a magenta dashed ring; Class E does not
Correct answer: Class D needs two-way ATC contact; Class E does not
The difference is that Class D needs two-way ATC contact; Class E does not, because Class D protects an airport with an operating control tower and a pilot must establish communication before entry, while Class E is controlled airspace that VFR traffic may enter without contact. Class D does not reach up to 18,000 feet; it is a small cylinder capped near 2,500 feet AGL, and it is Class E that extends toward FL180. Neither class carries a Mode C equipment requirement of its own, since that belongs to Class B, Class C and the Mode C veil. And a magenta dashed ring marks Class E surface area, not Class D, which is drawn as a dashed blue line.
- Which type of airspace is generally depicted on sectional charts with blue segmented lines?
- Class B, which rings the busiest gateway
- Class C, which rings the midsized airport
- Class E, which rings the distant farmland
- Class D, which rings the towered airfield
Correct answer: Class D, which rings the towered airfield
The blue segmented line marks Class D, which rings the towered airfield, since sectionals draw Class D as a dashed blue outline around an airport with an operating control tower. Class B over the busiest gateway is drawn as a solid blue line rather than a dashed one. Class C over the midsized airport is drawn in solid magenta. And Class E is never a dashed blue ring, because its surface area is a dashed magenta line and its 700-foot floor is a shaded magenta band.
- What is the operational limit of Class B airspace?
- 10,000 ft MSL
- 14,000 ft MSL
- 18,000 ft MSL
- 24,000 ft MSL
Correct answer: 10,000 ft MSL
Class B is normally capped at 10,000 ft MSL. The inverted wedding-cake structure around the nation's busiest airports typically runs from the surface up to 10,000 feet MSL, with a Mode C veil out to 30 nautical miles. 14,000 ft MSL corresponds to no airspace boundary. 18,000 ft MSL is the floor of Class A, well above any Class B shelf, and 24,000 ft MSL is simply a cruising level inside Class A.
- What type of weather phenomenon is reported in a METAR when the term "BR" is used?
Correct answer: Mist
BR reports mist. The contraction comes from the French brume, and it is coded when suspended water droplets cut prevailing visibility to between 5/8 and 6 statute miles with the air near saturation. Haze is coded HZ and is dry particulate rather than water droplets, and it does not require near-saturated air. Dust is coded DU and is lifted soil, again not condensed moisture. Hail is coded GR, or GS for small hail and snow pellets, and is precipitation reported as a convective hazard rather than an obscuration.
- A METAR report shows "BKN008." What does this indicate?
- Scattered sky at 800 ft AGL
- Overcast base at 800 ft AGL
- Broken clouds at 800 ft AGL
- Totally clear at 800 ft AGL
Correct answer: Broken clouds at 800 ft AGL
BKN008 reports broken clouds at 800 ft AGL: BKN denotes 5 to 7 oktas of sky cover, and the three digits give the height of the cloud base in hundreds of feet above the reporting station. A scattered sky is coded SCT and covers only 3 to 4 oktas, so it never constitutes a ceiling. An overcast base is coded OVC and covers all 8 oktas. A totally clear sky is coded SKC or CLR, which is precisely what BKN excludes. In every case the height is 800 feet rather than 8,000, because the coded value is in hundreds of feet.
- Which of the following would be considered a temporary weather phenomenon affecting aviation?
Correct answer: SPECI
SPECI is the one issued for a temporary or rapidly changing condition. A SPECI is an unscheduled special observation put out between the routine hourly cycle whenever a criterion such as a visibility, ceiling, wind shift or thunderstorm change is met. TREND is a forecast group appended to an observation in some countries, not a report of what is happening now. METAR is the scheduled routine observation and is issued on the clock whether or not anything has changed. NOTAM carries airspace and facility notices and reports no weather at all.
- What is the definition of "density altitude"?
- The altitude corrected for a nonstandard air temperature
- The altitude established above the average ocean surface
- The altitude adjusted for the actual barometric pressure
- The altitude derived from the standard atmosphere tables
Correct answer: The altitude corrected for a nonstandard air temperature
Density altitude is the altitude corrected for a nonstandard air temperature: formally, pressure altitude corrected for temperature away from the standard 15 degrees Celsius, so it tells the pilot what altitude the air feels like to a wing or a propeller. The altitude above the average ocean surface is true altitude, or MSL height. The altitude adjusted for the barometric setting is indicated altitude, which the altimeter shows once the local setting is dialed in. The altitude taken from the standard atmosphere tables is pressure altitude, which is only the starting point for the temperature correction.
- Which weather report gives the most detailed information about current weather conditions?
Correct answer: METAR
METAR gives the fullest picture of conditions at the surface right now, encoding wind, visibility, present weather, sky cover at each layer, temperature, dew point and altimeter setting for one station at one time. AIREP is a single pilot's account of what was met aloft, subjective and tied to one point in space and time. SIGMET is an advisory warning of one significant hazard rather than a full observation of current conditions. TAF is a forecast of what a terminal is expected to see later, not a report of what it has now.
- How often are METAR reports issued?
- Every third hour
- Every fifth hour
- Every clock hour
- Every sixth hour
Correct answer: Every clock hour
A METAR is issued every clock hour, normally in the ten minutes before the hour, so a station produces twenty-four routine observations a day. Every third hour, every fifth hour and every sixth hour would each leave long stretches with no current surface report, which is the opposite of what a routine observation is for; six-hourly issue describes the synoptic observations used for large-scale analysis, not the aviation METAR cycle. Conditions that change between the hourly reports are covered by a SPECI rather than by a slower schedule.
- What does "SIGMET" stand for?
- Special Meteorological Instrumentation
- Supplemental Aeronautical Instructions
- Supplementary Atmospheric Observations
- Significant Meteorological Information
Correct answer: Significant Meteorological Information
SIGMET expands to Significant Meteorological Information. It is an in-flight advisory warning of weather hazardous to all aircraft, such as severe icing, severe or extreme turbulence, widespread dust or sandstorms, or volcanic ash. Special Meteorological Instrumentation names equipment rather than an advisory. Supplemental Aeronautical Instructions describes no aviation product at all. Supplementary Atmospheric Observations would describe routine reporting, which is the METAR and SPECI system; the point of a SIGMET is that it is issued only when a hazard is significant.
- What is the typical valid period for a TAF?
- 24 to 30 hr
- 42 to 48 hr
- 12 to 18 hr
- 30 to 36 hr
Correct answer: 24 to 30 hr
A TAF normally covers 24 to 30 hr, since terminal aerodrome forecasts are issued four times a day for 24 hours at most airports and 30 hours at busier ones, describing conditions within about five statute miles of the airport reference point. 42 to 48 hr runs far past the longest routine TAF period, and forecasts reaching that far ahead are area and aviation surface products. 12 to 18 hr is shorter than any standard issue and matches no scheduled valid period. And 30 to 36 hr overshoots the longest TAF by six hours, since 30 hours is the ceiling rather than the start.
- What is the symbol for moderate turbulence in a weather report?
Correct answer: MOD TB
Moderate turbulence is written MOD TB, since the intensity field of a pilot report carries the standard contraction for the reported category. SEV TB reports severe turbulence, with large abrupt changes in altitude and momentary loss of control. EXT TB reports extreme turbulence, violent enough to risk structural damage. And LGT TB reports light turbulence, in which occupants feel only slight strain against the belts.
- What does "VFR" stand for in aviation weather terms?
- Varied Flight Rules
- Vector Flight Rules
- Visual Flight Rules
- Volume Flight Rules
Correct answer: Visual Flight Rules
VFR expands to Visual Flight Rules. These are the rules under which a pilot navigates by outside visual reference and stays responsible for seeing and avoiding other traffic, which is why they carry minimum flight visibility and cloud clearance values. Varied Flight Rules names nothing in the regulations; the rule set does not vary with conditions, the pilot instead switches to IFR. Vector Flight Rules describes radar vectoring, which is a service ATC provides and not a category of flight rules. Volume Flight Rules corresponds to no term in the regulations or in the AIM.
- What is the impact of adding a payload to a small unmanned aircraft on its flight performance?
- Increased maximum altitude
- Increased control response
- Decreased stalling airspeed
- Decreased flight endurance
Correct answer: Decreased flight endurance
Adding a payload produces decreased flight endurance, because the extra mass must be held up by extra lift, the motors draw more current to make it, and a battery of fixed capacity empties sooner. Increased maximum altitude is wrong, since the heavier aircraft runs out of surplus power lower down rather than higher. Increased control response is wrong, since greater inertia makes the aircraft slower to answer a stick input. Decreased stalling airspeed is wrong, since added weight raises the speed at which the critical angle of attack is reached.
- How does a shift in the center of gravity (CG) affect a small UAS?
- It reduces stability and degrades pilot control
- It improves stability and steadies banked turns
- It sharpens handling and extends the hover time
- It raises payload limits and widens the envelope
Correct answer: It reduces stability and degrades pilot control
A center of gravity outside limits reduces stability and degrades pilot control, because the geometry between the lift vector and the balance point is what damps a disturbance, so moving the balance point shortens or reverses that damping and the flight controller works against the airframe. It does not improve stability or steady banked turns, since an out-of-limits balance point is the exact condition the manufacturer's envelope exists to prevent. It does not sharpen handling or extend hover time, because trim drag rises and endurance falls with it. And it raises no payload limit and widens no envelope, both of which come from structure and power rather than from where the mass sits.
- What happens to the stall speed of a UAS as weight increases?
- The stall speed settles lower
- The stall speed climbs higher
- The stall speed turns erratic
- The stall speed holds constant
Correct answer: The stall speed climbs higher
As weight rises the stall speed climbs higher. Lift must equal weight in level flight and lift grows with the square of speed, so a heavier aircraft needs more speed at the same angle of attack before the wing will hold it up; stall speed scales with the square root of weight. The stall speed settles lower states the exact inverse of that relationship. The stall speed turns erratic is wrong because for a given configuration and weight the value is determinate rather than unpredictable. The stall speed holds constant would make published maximum weight limits pointless, since they exist precisely because the number moves.
- How does density altitude affect the performance of a small unmanned aircraft?
- Higher density altitude improves climb performance
- Higher density altitude sustains hover performance
- Higher density altitude weakens flight performance
- Higher density altitude matches normal performance
Correct answer: Higher density altitude weakens flight performance
Higher density altitude weakens flight performance. Hot, high or humid conditions thin the air, so each propeller revolution moves less mass, lift falls, and any air-breathing powerplant loses power as well. Higher density altitude improves climb performance is backwards, since climb depends on excess thrust and thin air supplies less of it. Higher density altitude sustains hover performance ignores the higher RPM a hover demands in thin air, which drains the battery faster. Higher density altitude matches normal performance would leave nothing for the performance charts, which are keyed to density altitude precisely because the effect is large.
- Which of the following conditions would result in the best performance for a small UAS?
- High plateau and steamy air
- Damp seashore and warm air
- Arid highlands and hot air
- Low altitude and chilly air
Correct answer: Low altitude and chilly air
The best performance comes with low altitude and chilly air, because cold air near sea level is the densest available, so the propellers move more mass per revolution and the aircraft climbs and hovers with margin to spare. A high plateau with steamy air is the worst case, combining low pressure, high temperature and water vapor, which is lighter than dry air. A damp seashore keeps the low elevation but gives up density to warmth and moisture. And arid highlands give up more still, since elevation and heat together raise density altitude even when the air holds no moisture.
- What is the effect of overloading a small UAS?
- It cuts maneuverability and risks structural damage
- It prolongs endurance and lightens battery drainage
- It improves airframe rigidity and flattens descents
- It reduces takeoff distance and preserves batteries
Correct answer: It cuts maneuverability and risks structural damage
Overloading cuts maneuverability and risks structural damage. Beyond the maximum weight the aircraft has less reserve thrust for a correction, responds sluggishly, and loads its arms, mounts and airframe beyond what the designer tested, so a hard maneuver or a firm landing can break something. It does not prolong endurance: the extra mass costs current continuously and shortens flight time. It does not improve airframe rigidity, which is a property of the structure rather than of the load placed on it. And it lengthens rather than reduces the ground run or the power needed to lift off.
- How does the weight of a small unmanned aircraft affect its rate of climb?
- Excess weight quickens the rate of climb
- Higher weight degrades the rate of climb
- Onboard weight sustains the rate of climb
- Total weight reverses the rate of climb
Correct answer: Higher weight degrades the rate of climb
Higher weight degrades the rate of climb, because climb comes from excess power, the surplus left after enough is spent holding level flight, and a heavier aircraft spends more of the available power just staying up. Excess weight therefore cannot quicken the climb, since it consumes the very surplus the climb depends on. Onboard weight does not sustain the climb rate either, which is why manufacturers publish climb figures against takeoff weight. And total weight does not reverse the climb into a descent while thrust still exceeds weight; the aircraft simply climbs more slowly.
- What does the term "load factor" refer to in UAS operations?
- The power output the airframe draws from its engines
- The top airspeed the airframe reaches in calm flight
- The added weight the airframe carries through a turn
- The total payload mass the airframe can readily lift
Correct answer: The added weight the airframe carries through a turn
Load factor is the added weight the airframe carries through a turn: banking or pulling up raises the effective weight the wings, rotors and structure must support, which is why a steep turn loads an aircraft well beyond its static weight. The power output the airframe draws from its engines is a thrust or energy figure, not a load; the top airspeed the airframe reaches in calm flight is a velocity limit; and the total payload mass the airframe can readily lift is a static useful-load rating that does not change with maneuvering.
- In what condition would a small unmanned aircraft experience the most significant performance degradation?
- Flying in cool dense air over a coastal plain
- Flying in dry stable air beneath a ridge line
- Flying in cold still air across a frozen lake
- Flying in humid thin air atop a mountain pass
Correct answer: Flying in humid thin air atop a mountain pass
Performance falls as air density falls, so flying in humid thin air atop a mountain pass is the worst case: altitude thins the air and water vapor thins it further, so the propellers bite less and the motors make less power. Flying in cool dense air over a coastal plain is close to the best case rather than the worst; flying in dry stable air beneath a ridge line is also dense, dry air being heavier than humid air at the same temperature; and flying in cold still air across a frozen lake is denser still, which improves lift and thrust instead of degrading them.
- What is the primary consequence of operating a UAS above its maximum takeoff weight?
- A markedly higher chance of a crash
- A longer glide with a stalled motor
- A lower stall speed in banked turns
- A steadier hover in gusty side wind
Correct answer: A markedly higher chance of a crash
Operating past the maximum takeoff weight brings a markedly higher chance of a crash: structure and motors are loaded past the limits they were tested to, climb rate and control margins shrink, and an overload failure or a power shortfall follows. Extra mass shortens the glide with a stalled motor rather than lengthening it; it raises stall speed in banked turns instead of lowering it, because stall speed climbs with load; and although mass is often expected to damp turbulence, an overloaded craft has less spare thrust to correct a gusty side wind, so the hover degrades.
- During a UAS flight, you experience a sudden loss of GPS signal. What is the appropriate action to take?
- Hover in place and wait for the satellite fix
- Take manual control and fly the craft right home
- Hold the last heading and press on to the target
- Climb above the trees and hunt a stronger signal
Correct answer: Take manual control and fly the craft right home
With the position fix gone, take manual control and fly the craft right home, since the aircraft is still within visual line of sight and the pilot can supply the navigation the satellites no longer do. Hovering in place to wait for the satellite fix drains the pack while the aircraft drifts downwind with nothing holding position. Holding the last heading and pressing on to the target trusts a position the aircraft can no longer update. Climbing above the trees to hunt a stronger signal treats a satellite outage as a control-link problem and carries the aircraft farther from the pilot.
- What is the most important consideration when dealing with an in-flight emergency?
- Rescuing the airframe and the costly gimbal
- Finishing the mission and the last waypoint
- Shielding the public and the property below
- Guarding the batteries and the folded props
Correct answer: Shielding the public and the property below
Shielding the public and the property below comes first in any emergency, because the remote pilot is responsible for an operation that creates no undue hazard to people or property on the ground, and hardware is expendable against that duty. Rescuing the airframe and the costly gimbal and guarding the batteries and the folded props both put equipment above people, and a pilot who steers a failing aircraft toward a crowd to save the machine has chosen wrongly; finishing the mission and the last waypoint puts schedule above safety, which is exactly the pressure an emergency is meant to override.
- What should you do if a small UAS suffers a mechanical failure during flight?
- Try to fix the fault from the ground station
- Press on toward the planned end of the route
- Cut the motor power to save the drained pack
- Land the craft in the nearest safe open area
Correct answer: Land the craft in the nearest safe open area
A mechanical failure in flight is resolved on the ground, so land the craft in the nearest safe open area, clear of people, while the aircraft is still controllable. Trying to fix the fault from the ground station is not possible on an unmanned aircraft whose failed component cannot be reached in flight; pressing on toward the planned end of the route stretches exposure to a known defect for no operational gain; and cutting the motor power to save the drained pack turns a controlled descent into an uncontrolled fall onto whatever lies below.
- In the event of a radio communication failure, what is the recommended procedure under Part 107?
- Set the craft down as soon as safely possible
- Keep to the flight plan through the final leg
- Fly toward the last point where the link held
- Climb higher to pull the base station back in
Correct answer: Set the craft down as soon as safely possible
With the radio link to the aircraft gone the pilot no longer commands it, so set the craft down as soon as safely possible, letting the lost-link behavior do so if the aircraft has one. Keeping to the flight plan through the final leg continues an operation the pilot can neither control nor terminate; flying toward the last point where the link held chases a coverage spot instead of ending the flight; and climbing higher to pull the base station back in trades a little range for an uncommanded aircraft that is farther away and nearer other traffic.
- When an emergency occurs that requires deviation from Part 107 regulations, what is required of the remote pilot?
- Tell the nearest ATC facility within one hour
- Send the FAA a written report within ten days
- Publish a NOTAM on the path within three days
- Log the event in the pilot log within one week
Correct answer: Send the FAA a written report within ten days
Emergency authority is exercised first and accounted for afterward, so send the FAA a written report within ten days of the deviation. Telling the nearest ATC facility within one hour invents a notification the rule never sets and does nothing for a deviation already flown. Publishing a NOTAM on the path within three days is an airspace notice issued through a flight service facility rather than a pilot's deviation report. And logging the event in the pilot log within one week keeps a private record that never reaches the agency at all.
- What should you do if you encounter an in-flight battery failure?
- Shut the craft camera off to cut current draw
- Slow the craft down to stretch the watt hours
- Get the craft on to the ground within seconds
- Fly the craft on to the last planned waypoint
Correct answer: Get the craft on to the ground within seconds
A failing battery gives the pilot a very short window, so get the craft on to the ground within seconds, while the pack still has enough power to control the descent. Shutting the craft camera off to cut current draw saves a trivial load next to the motors; slowing the craft down to stretch the watt hours keeps a failing pack airborne over people for longer; and flying the craft on to the last planned waypoint spends the remaining charge on the mission instead of on a controlled landing.
- When faced with an emergency situation, what must the remote pilot prioritize?
- The text of regulation and the written policy
- The goal of the charter and the paid deadline
- The value of the payload and the gimbal mount
- The safety of persons and the nearby property
Correct answer: The safety of persons and the nearby property
The safety of persons and the nearby property is what a remote pilot puts first in an emergency, and 14 CFR 107.21 allows the rules themselves to be set aside to the extent an in-flight emergency requires. The text of regulation and the written policy therefore yields to that duty rather than outranking it. The goal of the charter and the paid deadline is a commercial pressure that an emergency cancels outright. The value of the payload and the gimbal mount is replaceable hardware, never worth weighing against a person on the ground.
- What is a common cause of UAS flyaways?
- A jammed GPS signal or a lost position
- A drained LiPo battery or a failed ESC
- An overloaded boom or a bent IMU mount
- A strong tailwind or a poor RTH height
Correct answer: A jammed GPS signal or a lost position
A jammed GPS signal or a lost position is the usual root of a flyaway, because with no reliable fix the flight controller either drifts with the wind or runs an automatic routine toward a bad home point. A drained LiPo battery or a failed ESC ends the flight with a descent or a crash at a known place rather than an aircraft that wanders off; an overloaded arm or a bent IMU mount hurts stability and attitude sensing without touching navigation; and a strong tailwind or a bad RTH height costs range or obstacle clearance while the aircraft stays under command.
- If a small UAS enters restricted airspace unintentionally, what should the remote pilot do?
- Stay airborne and escape the area at high speed
- Land the craft and report to the zone authority
- Call the local police unit and await their word
- Climb well above the traffic and hold it steady
Correct answer: Land the craft and report to the zone authority
An unintentional incursion ends with the aircraft on the ground and the agency that owns the airspace told what happened, so land the craft and report to the zone authority. Staying airborne and escaping the area at high speed prolongs the intrusion and conceals it; calling the local police unit and awaiting their word reaches a body with no authority over that airspace and no way to warn the traffic in it; and climbing well above the traffic and holding it steady drives the aircraft deeper into the protected volume and nearer to manned aircraft.
- In the event of a lost link between the control station and UAS, what action should be taken?
- Wait quietly for the dead link to come back
- Climb high to force the faint link up again
- Let the craft run its stored lost link plan
- Drop down to hand steer once the link fails
Correct answer: Let the craft run its stored lost link plan
A lost link is planned for before takeoff, so let the craft run its stored lost link plan, which is the behavior the remote pilot programmed and briefed for exactly this case. Waiting quietly for the dead link to come back leaves an uncommanded aircraft aloft with no plan running; climbing high to force the faint link up again assumes a range problem and carries the aircraft farther from the pilot; and dropping down to hand steer once the link fails is not possible, since the lost link is the very channel that hand control would have to travel over.
- What is the primary purpose of Crew Resource Management (CRM) in UAS operations?
- To offload the entire workload from every remote pilot
- To speed up all radio calls made to the control tower
- To keep a complete written record of all crew actions
- To harness the whole set of resources for safe flight
Correct answer: To harness the whole set of resources for safe flight
Crew resource management exists to harness the whole set of resources for safe flight: people, hardware, information and procedures, used together and deliberately. To offload the entire workload from every remote pilot describes a possible byproduct, and workload is managed rather than removed. To speed up all radio calls made to the control tower narrows the idea to one communication channel and one facility. To keep a complete written record of all crew actions is documentation, which supports an operation without managing any of its resources.
- Which of the following is a key element of effective crew resource management?
- Open talk and firm coordination among the crew
- Full autopilot flight and a passive human role
- Solo operation and one single point of command
- Terse radio checks and very few spoken updates
Correct answer: Open talk and firm coordination among the crew
Effective crew resource management rests on open talk and firm coordination among the crew: information moves in every direction and each person's actions are meshed with the others on purpose. Full autopilot flight and a passive human role strips out the human judgment that CRM exists to organize; solo operation and one single point of command describes the absence of a crew rather than the management of one; and terse radio checks and very few spoken updates starve the team of the information sharing that CRM is built on.
- During UAS operations, what is the most important role of a visual observer (VO)?
- To work the stick at the takeoff and touchdown
- To spot the hazards and keep the craft visible
- To talk with the tower and relay its clearance
- To review the speed and altitude on the screen
Correct answer: To spot the hazards and keep the craft visible
The visual observer is there to spot the hazards and keep the craft visible, scanning for other aircraft and obstacles while holding the unaided visual contact the rule demands. To work the stick at the takeoff and touchdown is the job of the remote pilot in command, not the observer; to talk with the tower and relay its clearance is a radio task that most Part 107 flights never involve at all; and to review the speed and altitude on the screen means staring at a display, which is the opposite of keeping eyes on the aircraft.
- What should a remote pilot do if they notice that a crew member is not performing their assigned duties?
- Hand the task over to another crew member soon
- Let the lapse ride when the mission looks fine
- Raise the problem on the spot to ensure safety
- Save the talk for the debrief once safely down
Correct answer: Raise the problem on the spot to ensure safety
A duty that is not being performed is a live hazard while the aircraft is flying, so raise the problem on the spot to ensure safety. Handing the task over to another crew member soon reshuffles workload in flight and leaves the underlying breakdown unexamined; letting the lapse ride when the mission looks fine trades a real present risk for an outcome that has not happened yet; and saving the talk for the debrief once safely down addresses the problem long after the window in which it could have caused harm.
- What is the most critical communication skill in crew resource management?
- Keeping each exchange short and strictly factual
- Ducking conflict and calmly smoothing team rifts
- Issuing firm orders and expecting instant action
- Talking assertively and listening with real care
Correct answer: Talking assertively and listening with real care
Crew resource management turns on talking assertively and listening with real care: a crew member states a concern plainly and the person hearing it genuinely takes it in. Keeping each exchange short and strictly factual is useful radio discipline, but brevity alone never makes a concern get raised or heard; ducking conflict and calmly smoothing team rifts suppresses the very disagreement that surfaces a hazard; and issuing firm orders and expecting instant action is one-way authority, which shuts off the upward flow of information the method depends on.
- How does CRM help reduce the occurrence of human error in UAS operations?
- By lifting the crew talk and the joint choices
- By automating more of the flight and the route
- By leaning harder on the observer and his eyes
- By cutting the roster and the scope of overlap
Correct answer: By lifting the crew talk and the joint choices
CRM cuts human error by lifting the crew talk and the joint choices that follow from it, since shared information and cross-checking catch a mistake before it reaches the aircraft. By automating more of the flight and the route swaps machinery for the human coordination CRM manages and adds fresh failure modes; by leaning harder on the observer and his eyes loads one person rather than spreading the work; and by cutting the roster and the scope of overlap removes the second set of eyes that would have caught the first person's error.
- Which of the following is an example of poor crew resource management?
- Running a preflight brief with the entire team
- Waving away the calls from the visual observer
- Letting the crew raise doubts over the mission
- Working from a checklist for each flight phase
Correct answer: Waving away the calls from the visual observer
Waving away the calls from the visual observer is the textbook failure of crew resource management, because the pilot discards the one source placed to see what the pilot cannot. Running a preflight brief with the entire team distributes information before anything flies; letting the crew raise doubts over the mission keeps the upward channel open while it flies; and working from a checklist for each flight phase guards against memory lapses. All three are sound practice, so none of them can be an example of poor management.
- What is the primary benefit of conducting a thorough preflight briefing in UAS operations?
- It lowers the flight hours and the total cost
- It hands the pilot command and the whole task
- It leaves the crew clear on roles and hazards
- It verifies the gear and the spare parts work
Correct answer: It leaves the crew clear on roles and hazards
A thorough preflight briefing pays off because it leaves the crew clear on roles and hazards before anything is in the air, so nobody improvises a duty or meets a risk unprepared. It lowers the flight hours and the total cost is a budget claim a briefing does not deliver; it hands the pilot command and the whole task describes a briefing that bypasses the crew, which defeats the point of holding one; and it verifies the gear and the spare parts work confuses the briefing with the preflight inspection, which is a separate check of the equipment.
- When a remote pilot delegates tasks to crew members, what must they ensure?
- That the crew match the hours the pilot logged
- That the crew work apart from the flight chief
- That the crew handle the whole job quite alone
- That the crew grasp the duties each was handed
Correct answer: That the crew grasp the duties each was handed
Delegation only works once the remote pilot has confirmed that the crew grasp the duties each was handed, since a task that is misunderstood is a task that will not get done. That the crew match the hours the pilot logged sets an experience bar the rules never impose on a crew member; that the crew work apart from the flight chief strips out the coordination that delegation depends on; and that the crew handle the whole job quite alone gives away the final responsibility, which stays with the remote pilot in command.
- How does stress impact crew resource management during a UAS operation?
- It breeds judgment errors and broken crew talk
- It boosts crew output and sharpens each choice
- It tightens crew rhythm and steadies the hands
- It leaves crew work and flight outcomes intact
Correct answer: It breeds judgment errors and broken crew talk
Stress attacks exactly what crew resource management protects: it breeds judgment errors and broken crew talk, narrowing attention and cutting the flow of information between people. It boosts crew output and sharpens each choice describes mild arousal rather than the stress load CRM training addresses, and it reverses at any real level; it tightens crew rhythm and steadies the hands claims a coordination gain that stress actually removes; and it leaves crew work and flight outcomes intact denies an effect that decades of accident study have documented.
- What is the correct phonetic pronunciation for the letter "C" in radio communications?
- Charles
- Charlie
- Whiskey
- Juliett
Correct answer: Charlie
Charlie is the word assigned to the letter C, and the alphabet is fixed word for word so that a single letter survives a noisy channel. Charles is an ordinary given name that has never been part of the alphabet and would be heard as a name rather than as a letter; Whiskey is the word for W and Juliett the word for J, so each of those is a genuine code word attached to the wrong letter.
- In radio communication, how is the number "9" pronounced to avoid confusion?
Correct answer: Niner
Niner is the spoken form of the digit 9 in aviation phraseology; the added syllable keeps it from being clipped or heard as another word on a weak channel. Nine is the everyday form that the phraseology deliberately replaces; Fower is the spoken form of 4 and Fife the spoken form of 5, so both are genuine aviation number words attached to the wrong digit.
- When a remote pilot hears "Stand by" on the radio, what does it mean?
- Set it down and clear the active pattern
- Press ahead and fly out the planned route
- Turn onto a new heading and climb clear
- Hold your spot and wait for further word
Correct answer: Hold your spot and wait for further word
Stand by tells the pilot to hold your spot and wait for further word: the controller has heard the call, will come back to it, and nothing further is authorized in the meantime. Set it down and clear the active pattern reads an ordinary pause as an emergency instruction. Press ahead and fly out the planned route treats silence as approval, which it never is. Turn onto a new heading and climb clear invents a clearance that nobody issued.
- What is the purpose of using the ICAO phonetic alphabet in aviation communication?
- To end the mix-ups among like letters and digits
- To hasten the delivery and flow of each exchange
- To lend the radio a crisp and professional voice
- To trim the size and length of each transmission
Correct answer: To end the mix-ups among like letters and digits
The phonetic alphabet exists to end the mix-ups among like letters and digits, because B, D, E and P sound almost identical through a weak radio while Bravo, Delta, Echo and Papa do not. To hasten the delivery and flow of each exchange gets it backward, since spelling a word out takes longer than saying it; to lend the radio a crisp and professional voice names a side effect rather than the reason; and to trim the size and length of each transmission is brevity, which the alphabet spends rather than saves.
- What does the phrase "Wilco" mean in aviation radio communication?
- Will repeat
- Will comply
- Will listen
- Will report
Correct answer: Will comply
Wilco is a contraction of will comply: the instruction has been received and the pilot is going to carry it out. Will repeat confuses the term with a request to say again; will listen describes passive monitoring, which is nearer to standing by than to acting on an instruction; and will report promises some later message instead of compliance with the instruction that was just issued.
- What is the proper phraseology when an aircraft pilot wants to acknowledge and confirm receipt of a message?
Correct answer: Roger
Roger states that the transmission was received and understood, which is exactly what an acknowledgment is and nothing more. Wilco goes further and promises to carry out an instruction, so it is improper for a message that carries no instruction to comply with; Break separates two parts of one transmission rather than acknowledging anything; and Relay asks another station to pass a message along, which answers a different need.
- What does the term "Break" mean in radio communications?
- Signals the outright finish of the message
- Demands a lengthy pause inside the message
- Instructs the station to cease its message
- Separates the message into two clear parts
Correct answer: Separates the message into two clear parts
The word separates the message into two clear parts, so one transmission can carry two distinct pieces of traffic without them running together. Signals the outright finish of the message describes Out, the end-of-transmission word; demands a lengthy pause inside the message overstates it, since what is marked is a boundary rather than a wait; and instructs the station to cease its message would be an order to stop transmitting, which is not what the word conveys.
- If you hear the phrase "Negative" over the radio, what does it mean?
- It means a strong no
- It means a clear yes
- It means a full stop
- It means a fresh try
Correct answer: It means a strong no
Negative is the standard aviation word for refusal or denial, so it means a strong no and nothing more ambiguous. It means a clear yes reverses the sense, and that role belongs to Affirmative; it means a full stop confuses the word with an order to stop transmitting; and it means a fresh try is nearer to Say again, which is the request to repeat a message that was not understood.
- When should the phrase "Over" be used in radio communication?
- To flag a problem and yell for urgent help
- To close a call and invite a prompt answer
- To signal the finish and outcome of a task
- To confirm a message as heard and taken in
Correct answer: To close a call and invite a prompt answer
Over is spoken to close a call and invite a prompt answer: the speaker has finished and is handing the channel back for an answer. To flag a problem and yell for urgent help belongs to a distress or urgency call rather than to routine turn-taking; to signal the finish and outcome of a task reads the word as a mission report; and to confirm a message as heard and taken in is the work of Roger, which acknowledges instead of inviting a response.
- What is the correct response when ATC asks you to "Squawk 1200"?
- Retune the ATC radio channel to 1200 now
- Adjust the hand throttle to 1200 RPM now
- Set the transponder to the VFR code 1200
- Climb the aircraft to 1200 feet AGL fast
Correct answer: Set the transponder to the VFR code 1200
Squawk is an instruction about the transponder, so set the transponder to the VFR code 1200, the code worn by aircraft operating under visual flight rules. Retune the ATC radio channel to 1200 now confuses a squawk code with a frequency; adjust the hand throttle to 1200 RPM now reads a four-digit code as an engine setting; and climb the aircraft to 1200 feet AGL fast reads it as an altitude assignment, which a squawk instruction never conveys.
- How does an increase in aircraft weight affect the performance of a small unmanned aircraft?
- It quickens the roll in hard banked turns
- It lowers the stall speed of the airframe
- It leaves the climb rate exactly as found
- It cuts the minutes of usable flight time
Correct answer: It cuts the minutes of usable flight time
Added weight costs energy every second the aircraft is airborne, so it cuts the minutes of usable flight time: more thrust is needed merely to hold altitude and the pack drains faster. It quickens the roll in hard banked turns has it backward, because added mass slows the response; it lowers the stall speed of the airframe is wrong, since stall speed rises with load; and it leaves the climb rate exactly as found denies the loss of climb performance that extra weight always produces.
- What is the impact of high-density altitude on UAS performance?
- Weaker engine thrust and poorer lift margins
- Stronger rotor bite and cleaner prop airflow
- Steadier hover trim and tighter yaw response
- Unchanged motor power and normal climb rates
Correct answer: Weaker engine thrust and poorer lift margins
High density altitude means thin air, and thin air delivers weaker engine thrust and poorer lift margins, because the propellers move less mass per revolution and the motors have less air to work with. Stronger rotor bite and cleaner prop airflow describes dense low-level air instead. Steadier hover trim and tighter yaw response claims a handling gain that thin air removes, since control authority falls with thrust. Unchanged motor power and normal climb rates denies the effect that density altitude performance charts exist to quantify.
- Which factor most affects the rate of climb for a small UAS?
- Battery charge and cell voltage
- Aircraft weight and air density
- Wind direction and gust pattern
- Payload shape and skin friction
Correct answer: Aircraft weight and air density
Rate of climb comes from the thrust left over once weight is supported, so aircraft weight and air density govern it: heavier means less surplus thrust, and thinner air yields less thrust and less lift. Battery charge and cell voltage set how long a climb can be sustained rather than how steeply it proceeds; wind direction and gust pattern change the ground track and the ride without changing the rate through the air; and payload shape and skin friction tell far more at cruise speed than in a climb.
- How does payload affect the endurance of a small UAS?
- Endurance improves as the payload gets bigger
- Endurance holds firm across the whole payload
- Endurance shrinks as the payload weight rises
- Endurance answers to airspeed not the payload
Correct answer: Endurance shrinks as the payload weight rises
Carrying more mass costs energy for every second of flight, so endurance shrinks as the payload weight rises. Endurance improves as the payload gets bigger inverts the relationship outright; endurance holds firm across the whole payload treats flight time as independent of load, which no aircraft achieves; and endurance answers to airspeed not the payload names a genuine influence on flight time but denies the one the question asks about.
- In which condition will a small UAS have the best performance?
- Hot midsummer heating at a high mountain aerodrome
- Humid tropical haze with a rising density altitude
- Dry desert conditions during a hot dusty afternoon
- Cool morning temperatures at a low coastal airport
Correct answer: Cool morning temperatures at a low coastal airport
Cool morning temperatures at a low coastal airport give the densest air, so the propellers bite harder and the sUAS lifts, climbs and hovers best. Hot midsummer heating at a high mountain aerodrome raises density altitude sharply, a hot dusty desert afternoon does the same through heat alone, and humid water vapor lowers density further instead of helping performance.
- What effect does a forward center of gravity have on the performance of a small UAS?
- Steadier pitch attitude with a lagging control response
- Quicker turning authority under a mounting upset danger
- A reduced stalling speed with unchanged cruise handling
- Longer endurance times from lighter rotor blade loading
Correct answer: Steadier pitch attitude with a lagging control response
A forward center of gravity buys a steadier pitch attitude with a lagging control response: the airframe resists upsets but answers the sticks sluggishly. It gives less turning authority rather than more, it raises the stalling speed instead of reducing it, and the extra nose-down trim it demands costs endurance rather than lengthening it.
- How does increased airspeed affect the stall speed of a small UAS?
- The stall speed declines as the airspeed keeps rising
- The stall speed increases when the load factor builds
- The stall speed shifts with the field elevation alone
- The stall speed stays fixed through the flight regime
Correct answer: The stall speed increases when the load factor builds
As speed is traded for maneuvering, load factor grows and stall speed climbs with the square root of that load factor: the stall speed increases when the load factor builds. It does not decline as airspeed rises, field elevation moves the indicated stall speed hardly at all, and it does not stay fixed through the flight regime.
- How does high humidity affect the performance of a small UAS?
- It lifts the air pressure, gaining thrust and climb rate
- It cools the coil windings, easing wear and current draw
- It lowers the air density, cutting lift and motor output
- It soaks the blade surface, adding drag and extra weight
Correct answer: It lowers the air density, cutting lift and motor output
Water vapor weighs less than the dry air it displaces, so humid air is thinner: it lowers the air density, cutting lift and motor output. It does not lift the air pressure or add thrust, moisture does not cool the coil windings in any useful way, and it does not soak the blades enough to add drag or weight.
- What is the primary factor that affects takeoff distance for a small UAS?
- The crossing angle of the gusting wind
- The lithium chemistry of the pack
- The outside temperature of the air
- The overall weight of the aircraft
Correct answer: The overall weight of the aircraft
The overall weight of the aircraft is the primary driver of takeoff distance, because a heavier aircraft has to reach a higher speed and make more lift before it will fly. The crossing angle of the gusting wind only trims the ground run through its headwind component. The lithium chemistry of the pack governs endurance and current delivery rather than the distance to unstick. And the outside temperature of the air acts indirectly through density altitude instead of being the primary factor.
- What is the minimum amount of time a remote pilot must wait after consuming alcohol before operating a UAS?
- 8 hours after the pilot finishes the last drink
- 4 hours after the pilot empties the final glass
- 12 hours after the pilot ends the last function
- 24 hours after the pilot begins the rest period
Correct answer: 8 hours after the pilot finishes the last drink
Part 107 applies the rule in 14 CFR 91.17, which sets the wait at 8 hours after the pilot finishes the last drink. Four hours after the pilot empties the final glass is half the federal minimum, and nothing in the regulation shortens it. Twelve hours after the pilot ends the last function is a company policy some operators impose rather than the federal standard. And twenty-four hours after the pilot begins the rest period measures from the wrong event, since the clock runs from the last drink rather than from rest.
- What blood alcohol concentration 'BAC' disqualifies a person from operating a UAS under Part 107?
- 0.08 percent set as the limit for road drivers
- 0.04 percent or higher on a blood alcohol test
- 0.02 percent or higher on a breath test device
- Any trace of alcohol a breath test will reveal
Correct answer: 0.04 percent or higher on a blood alcohol test
A person may not manipulate the controls of a small unmanned aircraft with 0.04 percent or higher on a blood alcohol test. 0.08 percent is the common highway driving limit rather than the aviation figure, 0.02 percent is a workplace testing threshold used elsewhere in transportation, and a merely detectable trace is below the regulatory disqualifier even though flying while impaired is separately prohibited.
- What is a common side effect of sedating antihistamines like diphenhydramine (Benadryl) on remote pilots?
- A lasting boost in alertness and flying stamina
- Steadier hand and eye coordination at the stick
- Drowsiness and a delayed reaction to a conflict
- Better sight of close traffic and rising ground
Correct answer: Drowsiness and a delayed reaction to a conflict
Sedating antihistamines such as diphenhydramine bring drowsiness and a delayed reaction to a conflict, which is why the FAA warns against flying while they are working. They do not boost alertness or stamina, they blunt rather than steady hand and eye coordination, and they narrow sight of traffic and terrain instead of sharpening it.
- What action should a remote pilot take if they are taking prescription medication that could impair their ability to operate a UAS?
- Fly into controlled airspace and let ATC track it
- Keep each mission short and the pill quantity low
- Descend to a lower altitude and shorten the route
- Stay grounded and wait until the drug course ends
Correct answer: Stay grounded and wait until the drug course ends
A remote pilot taking a medication that could impair performance must stay grounded and wait until the drug course ends, because feeling capable is not the test the regulation uses. Controlled airspace and a watching controller do nothing about impairment, a short mission on a small quantity still puts an impaired pilot at the controls, and a lower altitude cuts neither the impairment nor the risk to people below.
- How can alcohol exacerbate the effects of fatigue on a remote pilot?
- It dulls motor skills and judgment, making fatigue worse
- It clears fatigue and tension, leaving the pilots rested
- It masks fatigue and hunger, keeping reaction time sharp
- It resets fatigue and sleep debt, giving back lost hours
Correct answer: It dulls motor skills and judgment, making fatigue worse
Alcohol dulls motor skills and judgment, making fatigue worse, because the two impairments stack on one another and the pilot notices neither. It does not clear fatigue and tension or leave pilots rested, since the body still owes every hour of sleep it lost. It does not mask fatigue and hunger in any way that keeps reaction time sharp, because reaction time decays under both at once. And it resets no sleep debt, so no lost hours are given back.
- How long after taking a drug known to impair performance must a remote pilot wait before operating a UAS?
- For 4 hours after the last tablet was swallowed
- Until the effects of the medicine have worn off
- A simple 8 hour delay copied from alcohol rules
- A complete twenty four hour pause from the dose
Correct answer: Until the effects of the medicine have worn off
For an impairing drug the wait runs until the effects of the medicine have worn off, since drugs differ widely in how long they act. A fixed 4 hour clock appears nowhere in the rule, the 8 hour figure belongs to alcohol rather than to drugs, and a blanket twenty four hour wait is neither required nor proof that the effects have passed.
- What is a key symptom of hypoxia, which can be exacerbated by alcohol consumption?
- Sharper focus and quicker scanning of the display
- Stronger memory and clearer recall of the mission
- Slower reactions and clumsy control of the sticks
- Wider awareness and better judgment of the ground
Correct answer: Slower reactions and clumsy control of the sticks
Hypoxia starves the brain of oxygen and shows up as slower reactions and clumsy control of the sticks, an effect alcohol deepens. It does not sharpen focus or scanning of the display, it does not strengthen memory or recall, and it narrows rather than widens judgment of the ground.
- When should a remote pilot self-assess for fitness to fly?
- Straight after a night of restless sleep
- Once the mission enters a populated area
- Just following two strong cups of coffee
- Ahead of each flight as routine practice
Correct answer: Ahead of each flight as routine practice
Fitness to fly is checked ahead of each flight as routine practice, using a self assessment such as the IMSAFE checklist. Poor sleep is only one of the conditions the check is meant to catch, the check is not triggered by flying over people, and caffeine masks fatigue rather than removing the reason for the check.
- What should a remote pilot do if they feel the effects of alcohol during a flight?
- Hand the controls to a fit pilot or land the aircraft now
- Drop down to a far lower altitude or slow the cruise rate
- Climb up above the tall trees or hold a steady high hover
- Take a strong black coffee or wait for a few calm minutes
Correct answer: Hand the controls to a fit pilot or land the aircraft now
A remote pilot who feels the effects of alcohol in flight must hand the controls to a fit pilot or land the aircraft now, because an impaired pilot may not manipulate the controls at all. Descending and slowing do not restore judgment, climbing or hovering leaves an impaired pilot flying, and coffee or a few minutes does not clear alcohol from the body.
- What is the primary danger of flying while taking prescription painkillers?
- Quicker reactions and smooth handling at the sticks
- Impaired thinking and slower control of the muscles
- Sharper focus and lasting stamina over long flights
- Pain relief with undisturbed flying and no problems
Correct answer: Impaired thinking and slower control of the muscles
Prescription painkillers bring impaired thinking and slower control of the muscles, which is why the FAA treats them as disqualifying while their effects last. They slow rather than quicken reactions, they dull rather than sharpen focus and stamina, and the pain relief arrives packaged with the impairment rather than undisturbed.
- What is the primary goal of aeronautical decision-making (ADM) in UAS operations?
- To shorten the total hours that each sortie needs
- To manage the crew resources that a mission takes
- To reach sound choices that keep each flight safe
- To automate the tasks that a human pilot performs
Correct answer: To reach sound choices that keep each flight safe
Aeronautical decision making exists to reach sound choices that keep each flight safe; every other benefit is secondary to that. Shortening the hours a sortie takes is a scheduling aim, managing crew resources is one input to the decision rather than its purpose, and ADM automates nothing the remote pilot does.
- What is the first step in the DECIDE model of decision-making?
- Estimate the need that a new report creates
- Choose the course that best fits the moment
- Identify the action that a pilot could take
- Detect the change that calls for a response
Correct answer: Detect the change that calls for a response
DECIDE opens with Detect: detect the change that calls for a response. Estimating what the change requires, identifying the actions available and choosing among them are all genuine steps of the model, but each of them can only follow the moment the change is noticed.
- In aeronautical decision-making, what is the primary focus when evaluating alternatives?
- The safety of the whole flight and crew
- The cost of the planned job and fuel
- The speed of the chosen route and delivery
- The ease of the quickest fix and tools
Correct answer: The safety of the whole flight and crew
Alternatives are weighed against the safety of the whole flight and crew, which outranks every competing measure in aeronautical decision-making. The cost of the planned job and fuel is a business concern that never displaces that standard. The speed of the chosen route and delivery is schedule pressure, itself a recognized accident factor. And the ease of the quickest fix and tools is convenience, which is set aside whenever the easier option leaves the operation less safe.
- What is the primary benefit of using a preflight checklist in ADM?
- It confirms the gear is packed and stowed away
- It keeps the pilot focused and ahead of events
- It removes the whole risk of failure and error
- It lowers the setup time and the takeoff delay
Correct answer: It keeps the pilot focused and ahead of events
A preflight checklist keeps the pilot focused and ahead of events, which is the value ADM draws from it. Confirming the gear is packed is a packing list rather than a decision aid, no checklist removes the whole risk of failure, and any saving in setup time is a side effect rather than the benefit.
- What is an appropriate response when encountering an unexpected hazard during flight?
- Call ATC and hand the hazard decision to the controller
- Land the UAS and shed the remaining hazard options fast
- Work the DECIDE model and pick the safest hazard action
- Log the hazard into a printed NOTAM and continue onward
Correct answer: Work the DECIDE model and pick the safest hazard action
The appropriate response is to work the DECIDE model and pick the safest hazard action, running detect, estimate, choose, identify, do and evaluate in that order. Calling ATC and handing the hazard decision to the controller misplaces authority, because the remote pilot in command stays responsible for the operation and ATC issues no instructions to a Part 107 flight. Landing and shedding the remaining hazard options fast discards alternatives that may be safer than an immediate landing, such as repositioning away from the hazard. Logging the hazard into a printed NOTAM is not something a remote pilot can do, and continuing onward leaves the hazard unaddressed.
- How can a remote pilot improve their decision-making skills?
- By flying simple routes and skipping tricky flights
- By keeping crew briefings and radio traffic minimal
- By setting aside prior lessons and earlier mistakes
- By training regularly and tracking the rule changes
Correct answer: By training regularly and tracking the rule changes
Judgment improves by training regularly and tracking the rule changes that affect the operation. Skipping every tricky flight builds no new judgment, trimming crew briefings and radio traffic removes the input that catches errors, and setting aside prior lessons discards the experience judgment is built from.
- What should a remote pilot do if they feel pressured to complete a flight under unsafe conditions?
- Delay the flight and wait for better conditions
- Press on and keep the customer delivery promise
- Ask the tower controller to assume the operation
- Fly the planned route and set the doubt aside
Correct answer: Delay the flight and wait for better conditions
Correct answer: Delay the flight and wait for better conditions. Schedule pressure is a hazard like any other, and the remote pilot in command is the one authority who can refuse the flight, so the launch waits until the weather, light or fatigue that created the doubt has passed. Press on and keep the customer delivery promise treats a commercial commitment as though it were a safety argument. Ask the tower controller to assume the operation misreads air traffic control, which neither flies nor accepts responsibility for a small unmanned aircraft. Fly the planned route and set the doubt aside leaves the hazard exactly where it was.
- Which attitude is considered hazardous in aviation decision-making?
- A deliberate attitude toward the preflight checklists
- An anti-authority attitude toward the operating rules
- A patient attitude toward the deteriorating weather
- An honest attitude toward the pilot's own limitations
Correct answer: An anti-authority attitude toward the operating rules
The hazardous one is an anti-authority attitude toward the operating rules, the mindset that treats a published regulation as somebody else's problem. A deliberate attitude toward the preflight checklists is ordinary airmanship rather than a hazard. A patient attitude toward the deteriorating weather is exactly the discipline the hazardous attitudes are contrasted against. An honest attitude toward the pilot's own limitations is the antidote to invulnerability, not an example of it.
- How does effective crew resource management (CRM) contribute to better aeronautical decision-making?
- It reduces the number of decisions to be made
- It wipes out the prospect of an air collision
- It draws out candid input from the whole crew
- It leaves each routine call to the lone pilot
Correct answer: It draws out candid input from the whole crew
Crew resource management draws out candid input from the whole crew, so more information reaches the decision before it is made. It does not reduce the number of decisions to be made, no process wipes out the prospect of a collision, and leaving every call to a lone pilot is the opposite of what CRM asks for.
- What is a key sign that a remote pilot may be making poor decisions during flight?
- Keeping a careful view of the aircraft overhead
- Running a final check over the launch equipment
- Sharing the route with the visual observer team
- Brushing off each of the latest weather updates
Correct answer: Brushing off each of the latest weather updates
Brushing off each of the latest weather updates is the classic sign that a remote pilot's decision making has slipped, because it discards the information the next decision depends on. Keeping a careful view of the aircraft, running a final check over the launch equipment and sharing the route with the visual observer team are all marks of sound practice rather than warning signs.
- What does "ATIS" stand for in airport operations?
- Automatic Terminal Information Service
- Aviation Terminal Instruction Standard
- Airborne Traffic Identification Signal
- Aerodrome Traffic Information Schedule
Correct answer: Automatic Terminal Information Service
ATIS is the Automatic Terminal Information Service, the recorded broadcast of weather, runway and field information repeated continuously at busier airports. The other three expansions are invented: no aviation instruction standard, airborne identification signal or aerodrome schedule stands behind those four letters.
- What is the purpose of a segmented circle at an airport?
- To steer the ground vehicles along taxiways and ramps
- To show wind direction and the active traffic pattern
- To mark the restricted zones and the airport boundary
- To indicate the control tower and its radio frequency
Correct answer: To show wind direction and the active traffic pattern
A segmented circle is there to show wind direction and the active traffic pattern to pilots arriving at a field without a tower. Ground vehicles are steered by painted markings rather than by the circle, restricted airspace is charted rather than laid out on the ground, and the tower and its frequency are published in the chart supplement.
- What does a white and green rotating beacon indicate at an airport?
- The airport is reserved for military flights too
- The airport is closed to arriving traffic today
- The airport is open for night operations also
- The airport is served by a control tower now
Correct answer: The airport is open for night operations also
An alternating white and green beacon marks a lighted civil land airport, so the airport is open for night operations also. It is not reserved for military flights, because a military field flashes two quick whites between each green. It is not closed to arriving traffic today, because a closure is marked by a painted or lighted X on the runway rather than by the beacon. And the beacon says nothing about whether the airport is served by a control tower, which the chart and frequency listing show instead.
- What information can a remote pilot obtain from a METAR report during airport operations?
- The tower and ground control frequency at the field
- The braking action and surface state of each runway
- The closure notices for the taxiways and ramp areas
- The wind direction and speed with current sky cover
Correct answer: The wind direction and speed with current sky cover
A METAR is an observation of current weather, so it gives the wind direction and speed with current sky cover, along with visibility, temperature and altimeter setting. Tower and ground frequencies come from the chart supplement, braking action and runway surface reports are separate messages, and taxiway or ramp closures are published as NOTAMs.
- What is the purpose of airport markings that are painted yellow?
- They mark the taxiways and the other non-runway areas
- They mark the runway edges and the centerline stripes
- They mark the secure gates and the no-entry barricades
- They mark the rescue lanes and the fire-truck routes
Correct answer: They mark the taxiways and the other non-runway areas
Correct answer: They mark the taxiways and the other non-runway areas. Yellow is the color of the movement-area scheme, identifying the surfaces a pilot or vehicle uses to get to and from the runway. They mark the runway edges and the centerline stripes belongs to the white runway scheme instead. They mark the secure gates and the no-entry barricades describes access control, which is conveyed by signs and physical barriers rather than by the pavement color code. They mark the rescue lanes and the fire-truck routes is not what the yellow code means either.
- When operating a UAS near an airport, what must a remote pilot do to comply with Part 107 regulations?
- Notify the local airport manager before entering the nearby airspace
- Obtain an ATC authorization for controlled airspace near the airport
- Broadcast intentions on the airport traffic advisory frequency first
- File a NOTAM with flight service before each planned airport flight
Correct answer: Obtain an ATC authorization for controlled airspace near the airport
Part 107 requires the remote pilot to obtain an ATC authorization for controlled airspace near the airport, normally through LAANC or the FAA DroneZone portal. Notifying the local airport manager is a courtesy that grants no airspace access, since only air traffic control can authorize the entry. Broadcasting on the airport traffic advisory frequency tells nearby manned pilots where you are but authorizes nothing. Filing a NOTAM publicizes the activity and still leaves the required authorization unobtained.
- What is the purpose of airport lighting systems at night?
- To steer the airport vehicles through ramps, gates and roads
- To walk the airport crews through fueling, towing and loading
- To guide the airport pilots through takeoff, landing and taxi
- To route the airport freight through aprons, docks and gates
Correct answer: To guide the airport pilots through takeoff, landing and taxi
Airport lighting exists to guide the airport pilots through takeoff, landing and taxi, which is why runway edge, threshold, taxiway and approach lights are coded by color and pattern for a pilot's eye. Steering the airport vehicles through ramps, gates and roads is the job of apron floodlighting and painted markings laid out for drivers. Walking the airport crews through fueling, towing and loading is ground handling lit by apron lighting rather than by the airfield lighting system. And routing the airport freight through aprons, docks and gates is a cargo operation, not a purpose of runway or taxiway lighting.
- What does the term "hot spot" refer to in airport operations?
- A marked pad on the ramp where launches and landings occur
- A busy hall in the terminal where shops and counters stand
- A fenced plot on the field where crews and rescuers gather
- A spot on the airport where vehicles and aircraft conflict
Correct answer: A spot on the airport where vehicles and aircraft conflict
A hot spot is a spot on the airport where vehicles and aircraft conflict, charted on the airport diagram so crews slow down and look before crossing. A marked pad on the ramp used for launches and landings is simply a movement area rather than a collision risk point. A busy terminal hall of shops and counters lies outside the movement area altogether. And a fenced plot held for crews and rescuers is a staging area for emergency equipment.
- What is a NOTAM, and why is it important for remote pilots operating near airports?
- A notice of short term changes in airspace or field conditions
- A forecast of upper level winds or cloud layers along a route
- A record of noise complaints or curfew breaks near an airport
- A standard procedure for taxi or hold routes at busy airfields
Correct answer: A notice of short term changes in airspace or field conditions
A NOTAM is a notice of short term changes in airspace or field conditions, such as a runway closure, a crane or a temporary flight restriction, which is why a remote pilot reads them before flying near an airport. A forecast of upper level winds or cloud layers along a route is a weather product rather than an airspace notice. A record of noise complaints or curfew breaks near an airport is never published to pilots at all. And a standard procedure for taxi or hold routes at busy airfields is a standing rule carried in chart supplements, not a temporary change.
- What does the presence of a wind sock at an airport indicate?
- The active runway and its published taxiway routes
- The wind direction and its rough relative strength
- The control tower location and its radio frequency
- The current visibility and the cloud base overhead
Correct answer: The wind direction and its rough relative strength
A wind sock gives the wind direction and its rough relative strength, which is what a remote pilot needs before launching or recovering. It does not by itself name the runway in use, it says nothing about the tower or its frequency, and it measures neither visibility nor cloud base.
- What is the primary goal of conducting a preflight inspection on a UAS?
- To show the battery packs give a longer flight
- To check the route file matches the day's plan
- To confirm the aircraft is fit for safe flight
- To reset the compass so the GPS acquires a lock
Correct answer: To confirm the aircraft is fit for safe flight
A preflight inspection is carried out to confirm the aircraft is fit for safe flight; anything else it turns up is a by-product. To show the battery packs give a longer flight mistakes an endurance goal for an airworthiness check. To check the route file matches the day's plan verifies mission programming, which is a separate step from inspecting the airframe. To reset the compass so the GPS acquires a lock is a calibration task performed inside the check rather than the reason for it.
- What should a remote pilot inspect during a preflight check of the propellers?
- The propellers' paint and any scuffs or faded markings
- The propellers' hub grease and any oil at the gearbox
- The propellers' pitch numbers and any motor trim curves
- The propellers' balance and any cracks or visible nicks
Correct answer: The propellers' balance and any cracks or visible nicks
A propeller preflight examines the propellers' balance and any cracks or visible nicks, because an unbalanced or chipped blade sheds thrust, sets up vibration and can fail in flight. Paint, scuffs and faded markings are cosmetic and reveal nothing about structural condition. Small UAS propellers turn on sealed motor bearings, so there is no hub grease or gearbox oil for the operator to inspect. And pitch numbers and motor trim curves are configuration values held in software rather than a physical check of the blades.
- What is the best action to take if a remote pilot notices that a battery is swelling?
- Withdraw the swollen battery from operations
- Recharge the swollen battery for observation
- Discharge the swollen battery for inspection
- Rebalance the swollen battery through cycles
Correct answer: Withdraw the swollen battery from operations
Correct answer: Withdraw the swollen battery from operations. Swelling means a lithium-polymer cell has vented gas internally, which is permanent damage, so the pack comes out of service and is replaced rather than flown again. Recharging it for observation still forces current into a cell whose separator has already failed, and watching a charging pack does not make it airworthy. Discharging it for inspection lowers the state of charge but leaves the swelling and the fire risk exactly where they were, so the pack remains unusable. Rebalancing it through charge cycles corrects a voltage mismatch between healthy cells, and swelling is chemical decomposition rather than a balance error, so no number of cycles restores the pack.
- Which of the following is not typically part of a UAS preflight inspection?
- Checking the propeller blades and shrouds
- Recording the aircraft weight and balance
- Verifying the control linkages and servos
- Inspecting the airframe and camera gimbal
Correct answer: Recording the aircraft weight and balance
Correct answer: Recording the aircraft weight and balance. Weight and balance is a planning computation the remote pilot works out before touching the aircraft, so it sits outside the hands-on inspection this item asks about. Checking the propeller blades and shrouds is squarely part of that inspection, since chipped blades and cracked guards are the commonest airworthiness discrepancy on a small multirotor. Verifying the control linkages and servos belongs to it as well, because free and correct movement must be seen before launch. Inspecting the airframe and camera gimbal is the same walk-around, covering loose fasteners, cracks and payload mounting.
- Why is it important to check the UAS software for updates before a flight?
- To raise rated software airspeed and payload capacity ceilings
- To rewrite saved software compass and gyroscope heading records
- To apply current software safety features and flight parameters
- To confirm planned software waypoints and camera exposure values
Correct answer: To apply current software safety features and flight parameters
Updates are checked in order to apply current software safety features and flight parameters, since manufacturers ship geofencing data, firmware fixes and revised flight envelopes through them. An update does not raise rated software airspeed and payload capacity ceilings, which the airframe, motors and battery set rather than code. It does not rewrite saved software compass and gyroscope heading records, because calibration is a separate procedure the pilot runs at the site. And confirming planned software waypoints and camera exposure values is mission planning, which happens whether or not an update exists.
- During a preflight inspection, what should be done if the remote pilot discovers a loose or worn component?
- Tighten or reseat the component before departure
- Photograph or note the component before departure
- Observe or monitor the component before departure
- Replace or repair the component before departure
Correct answer: Replace or repair the component before departure
The remote pilot must replace or repair the component before departure, because a loose or worn part means the aircraft is not in a condition for safe operation and the flight may not begin until the defect is corrected. Tightening or reseating the part leaves the wear in place, and a worn fastener or bushing works loose again under flight vibration. Photographing or noting the part records the defect while leaving the aircraft unairworthy. Observing or monitoring the part puts a known defect into the air, which is what the condition-for-safe-operation rule forbids.
- What should a remote pilot inspect regarding the UAS communication system during preflight?
- Signal strength and solid connection of the communication link
- Insulation colors and cable geometry of the communication link
- Antenna impedance and connector type of the communication link
- Frequency band and modulation scheme of the communication link
Correct answer: Signal strength and solid connection of the communication link
The preflight item is signal strength and solid connection of the communication link, confirmed by checking that the aircraft and controller are bound and that the link holds steady out to the intended range. Insulation colors and cable geometry of the communication link are manufacturing details the pilot cannot act on. Antenna impedance and connector type of the communication link are design values fixed by the manufacturer. Frequency band and modulation scheme of the communication link are set by the equipment's certification and are not adjusted before each flight.
- What is the best way to determine if the UAS camera or sensors are functioning properly before a flight?
- Inspect the protective lens on the camera payload
- Run the software diagnostic on the camera payload
- Recalibrate the gimbal axes on the camera payload
- Review the archived imagery on the camera payload
Correct answer: Run the software diagnostic on the camera payload
Correct answer: Run the software diagnostic on the camera payload. The built-in diagnostic interrogates the sensor, the gimbal drive, and the data path and reports faults while the aircraft is still on the ground, which is what a preflight functional check has to do. Inspecting the protective lens addresses surface contamination and cannot reveal a dead sensor, a failed gimbal motor, or a corrupt image pipeline. Recalibrating the gimbal axes adjusts stabilization rather than testing whether the sensors respond, and calibrating a faulty unit proves nothing. Reviewing the archived imagery shows what the camera did on an earlier flight and says nothing about its condition now.
- If a UAS flight control system fails during the preflight check, what should the remote pilot do?
- Fly the aircraft and override the control system
- Restart the avionics and test the control system
- Cancel the mission and repair the control system
- Shorten the route and monitor the control system
Correct answer: Cancel the mission and repair the control system
Correct answer: Cancel the mission and repair the control system. A flight control failure found on the preflight check means the aircraft is not in a condition for safe operation, so the flight does not depart until the fault is fixed. Flying the aircraft and overriding the control system removes the stabilization and attitude protection a small unmanned aircraft depends on to stay controllable. Restarting the avionics and testing the control system can clear a warning without curing the fault, and a fault that vanishes on a reboot is the kind that returns in the air. Shortening the route and monitoring the control system reduces exposure but still launches a known-defective aircraft, which the rule does not allow.
- Why is it important to check the weather conditions before each flight?
- To calculate cruise range in the existing conditions
- To select camera exposure in the existing conditions
- To extend flight duration in the existing conditions
- To confirm safe operation in the existing conditions
Correct answer: To confirm safe operation in the existing conditions
Correct answer: To confirm safe operation in the existing conditions. Wind, gusts, precipitation, temperature, and density altitude all bear directly on whether a small unmanned aircraft can be controlled and recovered, so the weather briefing is a go/no-go decision rather than a convenience. Calculating cruise range in the existing conditions is a performance nicety that matters only once the flight has already been judged safe to make. Selecting camera exposure in the existing conditions is a payload setting, and a correctly exposed image from an aircraft the wind is about to take away is worth nothing. Extending flight duration in the existing conditions is an endurance goal, and stretching endurance in marginal weather makes the operation less safe rather than more.
- What is the minimum visibility required for a remote pilot to operate a UAS under Part 107?
- 3 statute miles of minimum flight visibility
- 2 statute miles of averaged slant visibility
- 4 statute miles of reported field visibility
- 5 statute miles of horizontal air visibility
Correct answer: 3 statute miles of minimum flight visibility
Correct answer: 3 statute miles of minimum flight visibility. 14 CFR 107.51(c) sets the floor at 3 statute miles of flight visibility, judged from the location of the control station, and flight visibility is the figure the rule names. 2 statute miles of averaged slant visibility is below the regulatory floor, and slant visibility along the line of sight to the aircraft is not the quantity the rule measures. 4 statute miles of reported field visibility uses the airport surface observation rather than flight visibility from the control station, and it names a number the rule never sets. 5 statute miles of horizontal air visibility borrows a figure familiar from manned operations in controlled airspace, which is more than Part 107 demands and still not the stated minimum.
- A remote pilot must inspect their small UAS prior to each flight. What is the primary purpose of this preflight inspection?
- To retain the aircraft within its warranty terms
- To verify the aircraft is in airworthy condition
- To give the aircraft a clean cosmetic appearance
- To meet the aircraft annual FAA inspection rules
Correct answer: To verify the aircraft is in airworthy condition
Correct answer: To verify the aircraft is in airworthy condition. 14 CFR 107.49 requires the remote pilot in command to check the aircraft and its control links before every flight and to determine that the system is in a condition for safe operation. Retaining the aircraft within its warranty terms is a commercial arrangement with the manufacturer and creates no regulatory duty, so it cannot be the purpose of a required check. Giving the aircraft a clean cosmetic appearance addresses how the airframe looks rather than whether it works, and a spotless aircraft can still have a cracked arm. Meeting the aircraft annual FAA inspection rules describes a scheme that does not exist for small unmanned aircraft, which have no annual inspection requirement under Part 107.
- Under what circumstances may a remote pilot operate a UAS from a moving vehicle?
- When the flight happens within lawful daylight hours
- When the nearby airspace registers a single aircraft
- When the route stays above sparsely populated ground
- When a qualified observer travels inside the vehicle
Correct answer: When the route stays above sparsely populated ground
Correct answer: When the route stays above sparsely populated ground. 14 CFR 107.25 permits operation of a small UAS from a moving land or water vehicle, but the operation must be over a sparsely populated area, which is what keeps the risk to people on the ground acceptable while the control station itself is in motion. Whether the flight happens within lawful daylight hours governs lighting and civil-twilight requirements and has nothing to do with permission to fly from a vehicle. Whether the nearby airspace registers a single aircraft concerns traffic separation, and an empty sky does not lift the sparsely populated condition. Whether a qualified observer travels inside the vehicle is useful practice, but an observer does not substitute for the population limit, and carrying property for compensation from a moving vehicle stays prohibited.
- According to Part 107, what is the minimum distance required between a small UAS and a cloud?
- Leave 400 feet below and 1000 feet horizontally
- Keep 1000 feet below and 2000 feet horizontally
- Hold 2000 feet below and 1000 feet horizontally
- Allow 500 feet below and 2000 feet horizontally
Correct answer: Allow 500 feet below and 2000 feet horizontally
Correct answer: Allow 500 feet below and 2000 feet horizontally. 14 CFR 107.51(d) requires the small unmanned aircraft to stay at least 500 feet below any cloud and at least 2,000 feet horizontally from any cloud, so the remote pilot keeps clear vertically and laterally at the same time. Leaving 400 feet below and 1000 feet horizontally borrows the 400-foot altitude ceiling of 107.51(b) and halves the lateral figure, so it fails both halves of the cloud rule. Keeping 1000 feet below and 2000 feet horizontally applies the 1,000-foot figure that manned VFR pilots use for clearance above a cloud, not below one. Holding 2000 feet below and 1000 feet horizontally simply reverses the two distances, which leaves the aircraft far too close laterally to a cloud that can hide converging traffic.
- When may a Remote Pilot in Command operate their small UAS over people under Part 107 without a waiver?
- When a 0.55 pound aircraft has no exposed cutting rotors
- When a 55 lb quadcopter honors the 400 operating ceiling
- When a 100 foot altitude clears the standing crowd below
- When a 3 mile beacon shines through the evening twilight
Correct answer: When a 0.55 pound aircraft has no exposed cutting rotors
Correct answer: When a 0.55 pound aircraft has no exposed cutting rotors. That is Category 1 of the operations over human beings rule: 14 CFR 107.110(a) requires the small unmanned aircraft to weigh 0.55 pounds or less on takeoff and throughout the operation, including everything on board or attached, and to carry no exposed rotating parts that would lacerate human skin on impact. A 55 lb quadcopter honoring the 400 foot operating ceiling merely confuses the Part 107 maximum takeoff weight and altitude ceiling with the Category 1 weight limit, and neither of those figures authorizes flight over anyone. A 100 foot altitude clearing the crowd invents an allowance that does not exist, because no height, high or low, permits flight over human beings by itself. A 3 mile beacon shining through evening twilight satisfies the night anti-collision lighting requirement of 107.29, which governs when the aircraft may fly, not whom it may fly above.
- How long must a Remote Pilot in Command retain records of small UAS maintenance performed?
- 12 months, because Part 107 allows no earlier disposal
- 0 months, because Part 107 sets no retention requirement
- 24 months, because Part 107 permits no shorter retention
- 6 months, because Part 107 accepts no earlier purge
Correct answer: 0 months, because Part 107 sets no retention requirement
The answer is 0 months, because Part 107 sets no retention requirement: the rule imposes no maintenance record-keeping duty for small unmanned aircraft, so the remote pilot in command breaks nothing by discarding the paperwork, although keeping it is sound practice and manufacturers often ask for it. The 12 month figure borrows a medical-certificate style interval, and remote pilots hold no medical certificate under Part 107. The 24 month figure echoes the 24 calendar month recurrent training cycle, which governs the certificate holder rather than the aircraft records. And the 6 month figure matches no Part 107 interval at all, since disposal is unrestricted from the first day.
- Under Part 107, what is the minimum amount of time a person must wait after consuming alcohol before operating a small UAS?
- 4 hours between the final round and launch
- 12 hours between the last pour and liftoff
- 8 hours between the last drink and takeoff
- 24 hours between the final beer and flight
Correct answer: 8 hours between the last drink and takeoff
Correct answer: 8 hours between the last drink and takeoff. 14 CFR 107.27 pulls in the 91.17 alcohol rules, and the bottle-to-throttle interval for operating a small unmanned aircraft is 8 hours, the same figure that applies to a manned aircraft crewmember. 4 hours between the final round and launch is half the required interval, so an operation flown on it violates the rule even if the pilot feels sober. 12 hours between the last pour and liftoff is a company policy many operators adopt voluntarily, more conservative than the rule but not what Part 107 states. 24 hours between the final beer and flight corresponds to no federal aviation requirement at all. Note that the 8 hour wait is a floor, not a safe harbor: the rule independently bars operating with a blood alcohol concentration of 0.04 or more, or while under the influence.
- When operating under Part 107, how long is a temporary remote pilot certificate valid before the official certificate is issued by the FAA?
- 30 calendar days of official qualification status
- 60 calendar days of restricted eligibility status
- 90 calendar days of conditional privileges status
- 120 calendar days of temporary certificate status
Correct answer: 120 calendar days of temporary certificate status
Correct answer: 120 calendar days of temporary certificate status. 14 CFR 107.64(a) issues the temporary remote pilot certificate for up to 120 calendar days, by which time the permanent certificate is issued to an applicant the Administrator finds qualified, and 107.64(b) ends it sooner if the permanent certificate arrives or the application is denied. 30 calendar days of official qualification status matches no FAA issuance rule and would expire long before normal processing finishes. 60 calendar days of restricted eligibility status likewise appears nowhere in the certification rules and confuses the certificate with a short administrative grace period. 90 calendar days of conditional privileges status is the interval people most often guess, but the parallel airman rule at 61.17(a) also uses 120 days, not 90.
- If a remote pilot is convicted of an alcohol or drug-related offense, how long must they wait before being eligible to apply for a Part 107 remote pilot certificate?
- 12 months from the final conviction date
- 6 months from the documented arrest date
- 18 months from the suspended permit date
- 24 months from the written judgment date
Correct answer: 12 months from the final conviction date
Correct answer: 12 months from the final conviction date. 14 CFR 107.57 makes a drug or alcohol conviction grounds for denying a remote pilot certificate application for a period of one year after the date of final conviction, so 12 months is the interval the rule names. 6 months from the documented arrest date is wrong twice over: it halves the period, and the clock runs from conviction rather than from arrest. 18 months from the suspended permit date borrows from state driver-license practice, and a suspended driving permit is not the event the federal rule keys on. 24 months from the written judgment date doubles the federal period and echoes the 24 calendar month recurrent training cycle, which has nothing to do with certificate eligibility after a conviction.
- What type of airspace is not controlled and does not require communication with ATC?
- Class B airspace, the high-volume terminal layer
- Class G airspace, the low-altitude surface layer
- Class C airspace, the tower-linked airport layer
- Class E airspace, the wide-ranging transit layer
Correct answer: Class G airspace, the low-altitude surface layer
Correct answer: Class G airspace, the low-altitude surface layer. Class G is the uncontrolled airspace that fills the gaps beneath and between the controlled classes, and no clearance or authorization is needed to operate a small unmanned aircraft there. Class B airspace, the high-volume terminal layer surrounds the nation's busiest airports and is controlled, so it demands prior authorization. Class C airspace, the tower-linked airport layer is controlled as well, with two-way communication established before entry. Class E airspace, the wide-ranging transit layer is controlled airspace too, and a small UAS needs authorization in the portions that reach the surface near an airport.
- What is required to operate a small UAS in restricted airspace?
- LAANC authorization from a participating supplier
- Standing authorization from the operating airport
- Advance authorization from the controlling agency
- Recurring authorization from the nearest district
Correct answer: Advance authorization from the controlling agency
Correct answer: Advance authorization from the controlling agency. A restricted area exists because an activity hazardous to aircraft takes place inside it, and entry is permitted only with the prior approval of the agency that uses and controls the area, which is usually a military command. LAANC authorization from a participating supplier covers controlled airspace around airports and has no bearing on restricted areas, which are outside that system entirely. Standing authorization from the operating airport fails because an airport and its control tower do not own a restricted area and cannot grant entry to it. Recurring authorization from the nearest district misplaces the decision with an FAA field office, which administers certificates and waivers rather than access to another agency's airspace.
- What type of airspace is designated for military operations and does not require ATC authorization for UAS flights?
- Restricted Range Areas, charted as R-2515 zones
- Prohibited Capital Areas, charted as P-56 zones
- Controlled Terminal Areas, charted as ATC zones
- Military Operations Areas, charted as MOA zones
Correct answer: Military Operations Areas, charted as MOA zones
Correct answer: Military Operations Areas, charted as MOA zones. An MOA is special use airspace set aside to separate military training activity from IFR traffic, and because it is not controlled airspace in its own right, a small UAS operating inside one needs no air traffic control authorization, though the remote pilot should check activity times and stay alert for fast military aircraft. Restricted Range Areas, charted as R-2515 zones, are also military but carry a hazard to aircraft, so entry requires the permission of the using agency. Prohibited Capital Areas, charted as P-56 zones, are closed to flight outright for national security reasons and no authorization is available. Controlled Terminal Areas, charted as ATC zones, is a description of controlled airspace, where authorization is exactly what is required.
- What is the purpose of Class B airspace?
- To manage the flow around the busiest airports
- To protect the ranges from the nearby aircraft
- To divide the arrivals from the visual flights
- To separate the traffic above the high airways
Correct answer: To manage the flow around the busiest airports
Correct answer: To manage the flow around the busiest airports. Class B is drawn around the nation's highest-volume airports and exists to sequence and separate the heavy mix of arrivals and departures there, which is why every aircraft inside it operates under an explicit clearance. To protect the ranges from the nearby aircraft describes special use airspace such as restricted areas, which is drawn for hazardous activity rather than for traffic volume. To divide the arrivals from the visual flights states a service that controllers provide in several classes of airspace and is not the reason Class B exists. To separate the traffic above the high airways describes Class A, the airspace that begins at 18,000 feet MSL and requires instrument flight rules.
- In which airspace are Federal Airways primarily located?
- Class A airspace, which covers the highest altitudes
- Class E airspace, which covers the enroute structure
- Class B airspace, which covers the busiest terminals
- Class G airspace, which covers the lowest boundaries
Correct answer: Class E airspace, which covers the enroute structure
Correct answer: Class E airspace, which covers the enroute structure. The published low-altitude Victor airways are Class E controlled airspace, which fills the space between terminal areas and the high-altitude system and gives instrument traffic a protected route structure between airports. Class A airspace, which covers the highest altitudes, begins at 18,000 feet MSL and contains the jet route system rather than the low-altitude airways. Class B airspace, which covers the busiest terminals, is drawn around individual major airports and is terminal airspace, not a route structure spanning the country. Class G airspace, which covers the lowest boundaries, is uncontrolled, and an uncontrolled volume cannot host a protected federal airway.
- What is the significance of a Flight Restricted Zone (FRZ)?
- It restricts flights near the seasonal disaster areas
- It restricts flights near the military exercise lanes
- It restricts flights near the national security sites
- It restricts flights near the crowded stadium grounds
Correct answer: It restricts flights near the national security sites
Correct answer: It restricts flights near the national security sites. A Flight Restricted Zone is drawn to shield locations of national security significance, the Washington DC zone around the Capitol and the White House being the best known, and small unmanned aircraft are effectively barred from it. It restricts flights near the seasonal disaster areas describes a temporary flight restriction issued for wildfires, floods, and similar hazards, which is a different instrument with a defined expiry. It restricts flights near the military exercise lanes describes special use airspace such as military operations areas and restricted areas, which exist for training rather than for security of a fixed site. It restricts flights near the crowded stadium grounds describes the standing sporting-event restriction, which is tied to a game in progress rather than to a permanently protected location.
- What is the primary function of special use airspace?
- To reduce terminal arrival congestion and quicken departure streams
- To insulate unmanned aircraft missions and exclude manned intruders
- To supply radar separation service and sequence instrument arrivals
- To confine selected aviation activities and limit traffic conflicts
Correct answer: To confine selected aviation activities and limit traffic conflicts
Correct answer: To confine selected aviation activities and limit traffic conflicts. Special use airspace exists to bound activities that are hazardous or incompatible with ordinary flying, such as live fire, military training, and test work, so that those activities stay inside known boundaries and other traffic can plan around them. To reduce terminal arrival congestion and quicken departure streams describes the job of Class B and Class C terminal airspace, which is drawn for traffic volume rather than for activity type. To insulate unmanned aircraft missions and exclude manned intruders inverts the purpose, since special use airspace long predates small unmanned aircraft and is not drawn for their benefit. To supply radar separation service and sequence instrument arrivals describes an air traffic control service, and special use airspace is a charted volume rather than a service.
- When flying near Class C airspace, how can you tell if your UAS is entering the airspace?
- By checking the sectional chart lateral boundaries
- By reading the published NOTAM advisory statements
- By observing the overhead manned traffic movements
- By confirming the cruising altitude below ceilings
Correct answer: By checking the sectional chart lateral boundaries
Correct answer: By checking the sectional chart lateral boundaries. A sectional chart draws Class C as magenta rings with the lateral limits and the floor and ceiling of each shelf printed on it, so the chart is what tells the remote pilot whether a planned position lies inside the airspace. By reading the published NOTAM advisory statements will not answer the question, because notices report temporary changes and closures rather than the fixed shape of an airspace class. By observing the overhead manned traffic movements is unreliable, since aircraft transit the area whether or not the operator is inside the ring, and the boundary is invisible from the ground. By confirming the cruising altitude below ceilings confuses two separate rules: staying under the altitude limit does not exempt an operation from the authorization required inside controlled airspace.
- What is the maximum period a Convective SIGMET is valid for?
- 4 hours before the routine advisory lapses
- 2 hours before the issued bulletin expires
- 6 hours before the graphic forecast closes
- 8 hours before the convective outlook ends
Correct answer: 2 hours before the issued bulletin expires
Correct answer: 2 hours before the issued bulletin expires. A Convective SIGMET is issued for severe thunderstorm activity and carries a maximum valid period of 2 hours, which is short precisely because convection changes quickly and the bulletin is reissued as conditions evolve. 4 hours before the routine advisory lapses is the valid period of a non-convective SIGMET, a different product covering hazards such as severe icing and dust storms. 6 hours before the graphic forecast closes matches the AIRMET, which covers conditions hazardous to lighter aircraft and is a lesser-severity product. 8 hours before the convective outlook ends belongs to a longer-range planning product and is far too long a life for a warning about active thunderstorms.
- When would a PIREP be most useful for a remote pilot?
- When upcoming terminal and field predictions matter most
- When official hourly and surface assessments matter most
- When immediate turbulence and icing accounts matter most
- When long-term monthly and climate forecasts matter most
Correct answer: When immediate turbulence and icing accounts matter most
Correct answer: When immediate turbulence and icing accounts matter most. A pilot report is filed by an airman who has just flown through the conditions, so it is the only routine source that describes turbulence, icing, cloud tops, and ride quality as they are being experienced right now. When upcoming terminal and field predictions matter most points to the terminal aerodrome forecast, which is a prediction for one airport rather than an observation from an aircraft. When official hourly and surface assessments matter most points to the routine surface observation, which is measured at ground level at a fixed site and says nothing about conditions aloft. When long-term monthly and climate forecasts matter most describes planning products with no operational value for a flight about to launch.
- What is the term for a weather phenomenon where a cloud is formed by condensation and the air is cooled to the dew point?
- Hail, a banded pellet from repeated suspension
- Dew, a liquid coating from overnight radiation
- Thunderstorm, a tall column from moist lifting
- Fog, a low-lying cloud from chilled saturation
Correct answer: Fog, a low-lying cloud from chilled saturation
Correct answer: Fog, a low-lying cloud from chilled saturation. Fog is precisely a cloud in contact with the surface: the air is cooled until it reaches its dew point, becomes saturated, and the excess water vapor condenses into visible droplets. Hail, a banded pellet from repeated suspension, forms as ice is carried up and down inside a strong updraft and accretes layers, which is freezing rather than condensation at the dew point. Dew, a liquid coating from overnight radiation, is water that condenses onto a cold surface, so it is a deposit on objects rather than a cloud suspended in the air. Thunderstorm, a tall column from moist lifting, is a convective cell built by vigorous vertical motion, which is a different process and produces a cloud far above the surface.
- Which of the following reports would a remote pilot use to obtain current en-route weather conditions?
- PIREP, a crew account from an airborne cockpit
- METAR, an hourly observation from a fixed site
- TAF, a terminal prediction from a listed field
- SIGMET, a storm bulletin from a weather office
Correct answer: PIREP, a crew account from an airborne cockpit
Correct answer: PIREP, a crew account from an airborne cockpit. A pilot report is filed in flight and describes what is actually happening along the route, which makes it the product a remote pilot reaches for when the question is what the weather is doing en route right now. METAR, an hourly observation from a fixed site, is measured at the surface of one airport and describes conditions there rather than along a route. TAF, a terminal prediction from a listed field, is a forecast for the area immediately around a single airport and is a prediction rather than a current report. SIGMET, a storm bulletin from a weather office, warns of specific significant hazards over a broad region and is issued only when such a hazard exists, so it is not a general source of current conditions.
- In a METAR report, "SCT" refers to what cloud condition?
- Overcast clouds, covering the greatest fraction
- Scattered clouds, covering the middle fractions
- Broken clouds, covering the dominant proportion
- Sparse clouds, covering the smallest percentage
Correct answer: Scattered clouds, covering the middle fractions
Correct answer: Scattered clouds, covering the middle fractions. SCT is the coverage group for three to four eighths of the sky, the middle band of the reporting scale between the lightest and the heaviest coverage. Overcast clouds, covering the greatest fraction, is reported as OVC and means eight eighths, a completely covered sky. Broken clouds, covering the dominant proportion, is reported as BKN and means five to seven eighths, more coverage than SCT and enough to constitute a ceiling. Sparse clouds, covering the smallest percentage, is reported as FEW and means one to two eighths, less coverage than SCT.
- What does the term "VCTS" mean in a METAR report?
- Constant lightning, battering the observation station
- Towering cumulus, overhanging the observation station
- Nearby thunderstorms, ringing the observation station
- Expected squalls, approaching the observation station
Correct answer: Nearby thunderstorms, ringing the observation station
Correct answer: Nearby thunderstorms, ringing the observation station. The VC prefix means in the vicinity, roughly five to ten statute miles from the point of observation, so VCTS reports thunderstorms near the station but not over it. Constant lightning, battering the observation station, would be encoded as TS without the vicinity prefix, because the phenomenon is occurring at the station itself. Towering cumulus, overhanging the observation station, is encoded TCU and describes a building cloud that has not yet produced a thunderstorm. Expected squalls, approaching the observation station, would appear in a forecast or a change group rather than in the present weather field of a METAR, which reports what is observed now.
- How does a forward center of gravity (CG) position affect the performance of a UAS?
- It increases responsiveness but limits steadiness
- It strengthens efficiency but restricts endurance
- It accelerates stalling but simplifies recoveries
- It enhances stability but reduces maneuverability
Correct answer: It enhances stability but reduces maneuverability
Correct answer: It enhances stability but reduces maneuverability. Moving the center of gravity forward lengthens the moment arm to the tail or to the rear rotors, which makes the aircraft resist upset and return to its trimmed attitude, at the cost of heavier control response and slower rotation. It increases responsiveness but limits steadiness states the opposite trade and describes an aft center of gravity, which is the less stable and twitchier condition. It strengthens efficiency but restricts endurance confuses balance with power loading, since a forward center of gravity generally costs a little efficiency through added trim drag rather than buying it. It accelerates stalling but simplifies recoveries is backwards on both halves: a forward center of gravity raises stall speed slightly but makes the stall gentler and recovery easier, not the reverse.
- What happens when a UAS operates in ground effect?
- It gains extra lift and sheds induced drag
- It drops needed lift and adds surface drag
- It holds level lift and doubles rotor drag
- It leaves prior lift and keeps former drag
Correct answer: It gains extra lift and sheds induced drag
Correct answer: It gains extra lift and sheds induced drag. Close to the surface the ground interrupts the downwash and weakens the wingtip or rotor-tip vortices, so the same power produces more lift while induced drag falls, which is why an aircraft can feel like it floats just above the ground. It drops needed lift and adds surface drag reverses the effect and would describe an aircraft that struggles near the ground, which is not what happens. It holds level lift and doubles rotor drag keeps lift unchanged and invents a large drag penalty, when in fact drag falls. It leaves prior lift and keeps former drag denies the phenomenon altogether, and ground effect is measurable within roughly one rotor or wingspan of the surface.
- What is the primary factor that affects the takeoff distance of a UAS?
- The recorded pressure of the air
- The loaded weight of the aircraft
- The charted elevation of the field
- The measured angle of the airflow
Correct answer: The loaded weight of the aircraft
The primary factor is the loaded weight of the aircraft, because a heavier machine must reach a greater speed to make the lift that balances it and must accelerate more mass to get there, so distance grows quickly as weight rises. The recorded pressure of the air acts only through density altitude, a correction to the distance rather than the driver of it. The charted elevation of the field works the same indirect way, thinning the air with height while weight remains the primary term. And the measured angle of the airflow trims the ground run through its headwind component, so it adjusts the distance instead of setting it.
- Which of the following is true regarding the effects of high altitude on UAS performance?
- High altitude boosts rotor thrust and stretches battery life
- High altitude chills the battery pack and improves endurance
- High altitude thins air density and cuts overall performance
- High altitude trims parasite drag and hastens forward travel
Correct answer: High altitude thins air density and cuts overall performance
Correct answer: High altitude thins air density and cuts overall performance. Rotors and propellers move air, so less dense air means less thrust for the same rotational speed, longer takeoff and climb, reduced payload, and a shorter flight for a given battery. High altitude boosts rotor thrust and stretches battery life reverses that relationship, since thinner air gives each blade less mass to work on. High altitude chills the battery pack and improves endurance has the cell chemistry backwards, because cold packs deliver less usable capacity and the extra current needed for thrust shortens the flight. High altitude trims parasite drag and hastens forward travel notices a real but small benefit while ignoring the far larger loss of thrust and lift.
- What is the effect of adding weight to a UAS on its ability to maintain altitude?
- The aircraft glides at a flatter angle
- The aircraft hovers at a lower current
- The aircraft climbs at a quicker rate
- The aircraft stalls at a higher speed
Correct answer: The aircraft stalls at a higher speed
With weight added, the aircraft stalls at a higher speed, because holding altitude demands more lift and that lift comes from a higher angle of attack or a higher speed, so the critical angle is reached sooner and the usable speed range narrows. The aircraft glides at a flatter angle is wrong, since added weight changes the speed along the glide rather than the angle itself. The aircraft hovers at a lower current is backwards, since supporting a heavier machine draws more current. The aircraft climbs at a quicker rate is also backwards, since climb performance is surplus power divided by weight and falls as weight rises.
- In an emergency situation, when can a remote pilot deviate from the planned flight path?
- When human safety or property protection demands it
- When control approval or radar clearance permits it
- When documented waiver or prior exemption allows it
- When reduced altitude or AGL separation requires it
Correct answer: When human safety or property protection demands it
Correct answer: When human safety or property protection demands it. In an in-flight emergency the remote pilot in command may depart from any rule of Part 107 to the extent needed to meet that emergency, and the pilot must send a written report if the Administrator asks for one. When control approval or radar clearance permits it makes the deviation contingent on a controller, and an emergency will rarely allow time to obtain one; the authority rests with the pilot in command. When documented waiver or prior exemption allows it confuses the emergency authority with the certificate of waiver process, which is applied for in advance for planned operations. When reduced altitude or AGL separation requires it invents an altitude test, and the deviation authority turns on the emergency rather than on where the aircraft happens to be flying.
- What is a recommended procedure if the remote pilot loses situational awareness during a flight?
- Increase the flight altitude and broaden visual coverage
- Suspend the flight and reestablish awareness then resume
- Instruct the flight controller and retrieve the aircraft
- Continue the flight and establish a steadier groundspeed
Correct answer: Suspend the flight and reestablish awareness then resume
Correct answer: Suspend the flight and reestablish awareness then resume. Explanation: The recommended response to lost situational awareness is to stop adding new demands, hold the aircraft in a stable low-workload state, rebuild an accurate picture of position, traffic and battery state, and only then continue the mission. Climbing to broaden visual coverage puts the aircraft closer to manned traffic and can push it beyond the 400 ft AGL limit while the pilot is still disoriented. Handing the aircraft to an automated retrieve routine surrenders control at the moment the pilot least understands where the aircraft is and what lies along the return path. Continuing at a steadier groundspeed keeps the aircraft moving through the very airspace the pilot can no longer account for.
- If a remote pilot encounters a sudden weather change during a flight, what should they do?
- Climb above the weather and continue the planned survey
- Switch into manual control and push through the weather
- Land soon and recover the aircraft once weather permits
- Keep the original weather course and finish the mission
Correct answer: Land soon and recover the aircraft once weather permits
Correct answer: Land soon and recover the aircraft once weather permits. Explanation: A sudden change in conditions is a recovery cue: the remote pilot should bring the aircraft down at the first opportunity that can be taken safely, rather than trying to outlast or outmaneuver the change. Climbing above the weather trades one hazard for another, since it erodes the required cloud clearance and pushes toward the 400 ft AGL ceiling. Hand-flying through the weather leaves the aircraft inside the deteriorating conditions and adds workload exactly when visual line of sight is hardest to hold. Holding the original course to finish the mission ignores the change entirely and is the mission-pressure trap the rule exists to prevent.
- When an onboard system failure occurs, what is the remote pilot's immediate priority?
- Repair the faulted board while the aircraft stays aloft
- Push the aircraft ahead toward the next survey waypoint
- Switch the aircraft onto a reduced backup power profile
- Land the aircraft at the first clearly safe opportunity
Correct answer: Land the aircraft at the first clearly safe opportunity
Correct answer: Land the aircraft at the first clearly safe opportunity. Explanation: When a system fails in flight the immediate priority is to get the aircraft on the ground at the first safe opportunity, before a single failure cascades into a loss of control over people or property. Repairing a faulted board is impossible on an airborne small unmanned aircraft, and the attempt consumes the endurance the pilot needs for recovery. Pushing on to the next waypoint extends exposure with a known defect aboard. Falling back on reduced backup power treats the symptom, drains the battery, and leaves the aircraft airborne with the fault unresolved.
- If your UAS flies into a restricted area unintentionally, what is the appropriate action to take?
- Land promptly and notify the FAA or controlling agency
- Continue the flying mission and file a NOTAM afterward
- Depart the region discreetly and skip the ATC briefing
- Circle within the TFR and seek incoming radio guidance
Correct answer: Land promptly and notify the FAA or controlling agency
Correct answer: Land promptly and notify the FAA or controlling agency. Explanation: An unintentional incursion into restricted airspace is ended by getting the aircraft down as soon as practicable and reporting the event to the FAA or the agency that controls the area, so the deviation is documented and deconflicted. Continuing the mission prolongs the incursion, and a remote pilot cannot file a NOTAM at all. Leaving quietly without contacting anyone conceals a deviation controllers need to know about. Loitering inside the restricted volume keeps the aircraft in airspace it should never have entered, and no advisory service is monitoring a small unmanned aircraft to issue such guidance.
- If a crew member expresses concerns about the mission plan, what should the remote pilot do?
- Dismiss the doubt and launch under the unchanged plan
- Address the concerns and revise the plan where needed
- Reassign the crew member and preserve the plan intact
- Postpone the departure and fly the same plan tomorrow
Correct answer: Address the concerns and revise the plan where needed
Correct answer: Address the concerns and revise the plan where needed. Explanation: Crew resource management works only when a raised concern is actually evaluated and the plan changes if the concern has merit; the remote pilot in command owns that decision. Dismissing the doubt discards the safety information the crew member was placed there to supply. Moving the crew member to another position removes the person, not the hazard they identified, and the unexamined plan flies anyway. Postponing the departure and then flying the identical plan wastes the warning entirely, since nothing about the operation has been reconsidered.
- What is the best way to ensure all crew members are aware of potential flight hazards?
- Write a detailed checklist entry covering the flight hazards
- Send a written group message describing the flight hazards
- Deliver a full preflight briefing listing the flight hazards
- Brief a single qualified pilot regarding the flight hazards
Correct answer: Deliver a full preflight briefing listing the flight hazards
The whole crew is covered only when you deliver a full preflight briefing listing the flight hazards, because a structured briefing names each hazard, says who is exposed to it and what the response will be, and confirms everyone heard it. Writing a detailed checklist entry covering the flight hazards documents them for whoever holds the checklist without confirming the visual observer ever read the entry. Sending a written group message describing the flight hazards reaches phones rather than people and is easily missed on a busy site. And briefing a single qualified pilot regarding the flight hazards leaves the rest of the crew working around risks nobody named to them.
- What is the best way to improve teamwork during UAS operations?
- Limiting crew chatter and keeping the radio traffic restricted
- Ranking crew duties by seniority and awarding roles thereafter
- Reserving crew judgment for the pilot and expecting compliance
- Encouraging open crew dialogue and inviting each member's view
Correct answer: Encouraging open crew dialogue and inviting each member's view
Correct answer: Encouraging open crew dialogue and inviting each member's view. Explanation: Crew resource management improves teamwork by making it safe and expected for a visual observer or payload operator to speak up, so hazard information reaches the remote pilot in command before it becomes an incident. Restricting radio traffic suppresses exactly the reports the team needs to hear. Ranking duties by seniority assigns work by tenure rather than by competence at the task, and it teaches junior members that their observations carry no weight. Reserving judgment for the pilot alone discards the extra sets of eyes that the crewed operation was built to provide.
- When should CRM principles be applied during UAS operations?
- Across each flight phase from planning to final shutdown
- During each takeoff and landing segment of every mission
- Within each mission staffed by three or more crewmembers
- Through each emergency needing fast decisive pilot action
Correct answer: Across each flight phase from planning to final shutdown
Correct answer: Across each flight phase from planning to final shutdown. Crew resource management is a continuous practice covering mission planning, the preflight brief, launch, the operation itself, recovery and the post-flight debrief, and the decision quality it protects is needed most in the quiet stretches where complacency builds. During each takeoff and landing segment of every mission leaves cruise and the working phases, where most drift into hazardous conditions occurs, unmanaged. Within each mission staffed by three or more crewmembers ties the practice to crew size, yet a solo remote pilot still applies workload management, checklists and self-assessment. Through each emergency needing fast decisive pilot action inverts the idea, since the practice exists to keep emergencies from developing at all.
- What is the effect of a rearward center of gravity on UAS performance?
- Greater flight stability but duller response to pilot input
- Greater flight agility but weaker resistance to gusty upset
- Greater flight endurance but lighter drain on the batteries
- Greater flight climb rate but increased loads per propeller
Correct answer: Greater flight agility but weaker resistance to gusty upset
Correct answer: Greater flight agility but weaker resistance to gusty upset. Explanation: Moving the center of gravity aft shortens the moment arm that damps pitch, so the aircraft answers control inputs more readily while resisting disturbances less; that is increased maneuverability bought with reduced stability. The opposite pairing, more stability with a duller response, describes a forward center of gravity, not a rearward one. Endurance and battery drain are governed by weight, propeller efficiency and wind rather than by where the balance point sits. A rearward balance does not buy climb performance; it degrades the aircraft's ability to hold an attitude, which is a handling penalty rather than a power gain.
- In what condition would a small UAS experience the most performance degradation?
- Humid marine layers sitting over a beachfront
- Freezing winter morning upon an alpine summit
- Scorching summer afternoon atop a desert mesa
- Freezing winter morning beside a lowland lake
Correct answer: Scorching summer afternoon atop a desert mesa
Correct answer: Scorching summer afternoon atop a desert mesa. Explanation: Performance degrades as air density falls, and heat and elevation both reduce density, so a hot day at a high field elevation produces the highest density altitude and the worst lift, thrust and climb performance of the four. Humid air at sea level is slightly less dense than dry air but the low elevation and moderate temperature keep density altitude near standard. Cold air at altitude is dense for its elevation, and the low temperature partially offsets the height. Cold air at low elevation is the densest of the four and gives the best performance, not the worst.
- How does wind speed affect the performance of a small UAS?
- Strong wind extends the flight duration and adds extra upward energy
- Strong wind leaves the flight range and battery use wholly unchanged
- Strong wind steadies the flight and sharpens the pilot control input
- Strong wind raises the power draw and shortens available flight time
Correct answer: Strong wind raises the power draw and shortens available flight time
Correct answer: Strong wind raises the power draw and shortens available flight time. Explanation: Holding position or track against a strong wind forces the motors to work continuously against the airmass, so current draw rises and the usable endurance falls well short of the still-air figure. Wind does not hand the aircraft free energy: a small multirotor spends power fighting the gust, and any tailwind advantage is paid back on the return leg. Claiming no effect ignores the measured relationship between wind loading and current draw. Wind does not steady the aircraft either; it forces continuous corrective inputs and makes precise positioning harder, not sharper.
- What happens to the rate of descent when weight is added to a small UAS?
- The descent rate increases whenever added payload grows heavier
- The descent rate dips because weightier airframes glide farther
- The descent rate holds perfectly constant throughout the flight
- The descent rate remains largely independent of aircraft weight
Correct answer: The descent rate increases whenever added payload grows heavier
Correct answer: The descent rate increases whenever added payload grows heavier. Explanation: Extra weight demands more power to hold altitude, so at a given power setting a heavier aircraft sinks faster; unless the pilot adds power, the rate of descent goes up. A heavier airframe does not glide farther in the sense implied here, because the higher sink rate is what pays for the extra speed. Treating the descent rate as constant ignores the direct relationship between weight and the power required to arrest a sink. Calling it independent of weight contradicts the load-versus-power relationship the aircraft flight manual publishes for every configuration.
- What is the final step in the DECIDE model of aeronautical decision-making?
- Detect a hazard that needs the pilot's instant attention
- Evaluate the outcome that the chosen action has produced
- Implement the solution that the crew has lately selected
- Identify the options that could resolve the open problem
Correct answer: Evaluate the outcome that the chosen action has produced
Correct answer: Evaluate the outcome that the chosen action has produced. Explanation: The DECIDE loop runs Detect, Estimate, Choose, Identify, Do and Evaluate, so the closing step is judging whether the action taken actually fixed the problem and left the flight safe; without it the loop never closes and a bad choice goes uncorrected. Detecting a hazard that needs attention is the opening step, not the closing one. Carrying out the chosen solution is the Do step that immediately precedes evaluation. Identifying candidate actions sits in the middle of the sequence, before anything has been done at all.
- What is the purpose of using the “5P” model in aeronautical decision-making?
- To forecast the sky conditions across each launch site
- To appraise the piloting ability of every crew member
- To guide a structured flight review before each launch
- To compute an escape route after every sudden breakdown
Correct answer: To guide a structured flight review before each launch
Correct answer: To guide a structured flight review before each launch. The 5P checklist covers the Plan, the Plane, the Pilot, the Passengers and the Programming, and its function is to force a repeatable sweep of the factors that decide whether a flight should go, at points where a pilot might otherwise skip one. To forecast the sky conditions across each launch site is not a weather product, since the checklist prompts the pilot to consider the forecast but produces none. To appraise the piloting ability of every crew member is a competency assessment, and the checklist grades no one and issues no rating. To compute an escape route after every sudden breakdown is an output a pilot may build from the review, not the purpose of the checklist.
- What is the “Anti-Authority” hazardous attitude, and how can it affect UAS operations?
- Believing accidents happen to careless operators but not you
- Rushing into action before the situation gets fully assessed
- Trusting the aircraft automation more than your own judgment
- Rejecting the safety rules published by an outside regulator
Correct answer: Rejecting the safety rules published by an outside regulator
Correct answer: Rejecting the safety rules published by an outside regulator. Explanation: Anti-Authority is the hazardous attitude of resenting being told what to do, which shows up as disregard for rules the pilot did not write; in Part 107 operations it produces altitude busts, flights over people and unauthorized entries into controlled airspace. Believing mishaps only strike other people is Invulnerability. Acting before the situation has been assessed is Impulsivity. Leaning on the automation instead of the pilot's own judgment is Resignation, a surrender of command authority rather than a rejection of it. The antidote to Anti-Authority is the reminder that the rules are usually right.
- What does the term “Get-There-Itis” refer to in aeronautical decision-making?
- A drive to reach the destination despite safety hazards
- A pressure to fly quicker because of customer deadlines
- An urgency to complete the mission within minimum hours
- An overconfidence fed by a sequence of flawless flights
Correct answer: A drive to reach the destination despite safety hazards
Correct answer: A drive to reach the destination despite safety hazards. Explanation: Get-There-Itis is the fixation on arriving that makes a pilot discount deteriorating weather, dwindling battery or a failing component because the destination is close; it is dangerous precisely because the pilot keeps flying past the point where the plan should have been abandoned. External pressure from a client sets up the fixation but is not the term itself. A wish to finish quickly describes schedule efficiency, not the refusal to divert. Confidence built from a run of uneventful flights is Invulnerability, a separate hazardous attitude.
- When operating near an airport, what is the purpose of communicating with ATC as a remote pilot?
- To request permission for a takeoff from the airport ramp
- To seek permission for entry into the controlled airspace
- To hold permission for a slot into the departure sequence
- To obtain permission for the current airport weather report
Correct answer: To seek permission for entry into the controlled airspace
Under 14 CFR 107.41 a small unmanned aircraft may not operate in Class B, C, D or surface Class E airspace without authorization, so the remote pilot contacts ATC to seek permission for entry into the controlled airspace, usually through LAANC. A takeoff from the airport ramp concerns aircraft on the movement area, not a drone launched from outside it. A slot in the departure sequence likewise applies to traffic the tower is sequencing. And the current airport weather comes from an automated broadcast or a briefing service rather than from a controller.
- What is the significance of two white lights and two red lights on a Precision Approach Path Indicator (PAPI) system?
- The approach sits somewhat above the published glide path
- The approach lies slightly below the published glide path
- The approach rides exactly along the published glide path
- The approach wanders left beside the published glide path
Correct answer: The approach rides exactly along the published glide path
Correct answer: The approach rides exactly along the published glide path. Explanation: A four-light PAPI shows an even split when the aircraft is on the correct vertical path: two white on the side away from the runway and two red nearer it. Three or four white lights mean the aircraft is high, so a reading of two and two cannot indicate a position above the path. Three or four red lights mean the aircraft is low, so two and two cannot indicate a position below it either. PAPI resolves the vertical dimension only and says nothing about lateral position, so no combination of its lights reports a drift left or right of centerline.
- What is the significance of calibrating the UAS compass during preflight?
- To secure a longer ESC runtime and quicker battery recharging
- To obtain a sharper FPV camera focus and smoother panning
- To restore a firmer IMU damping and gentler pitch response
- To ensure an exact GPS heading and accurate route navigation
Correct answer: To ensure an exact GPS heading and accurate route navigation
The compass is calibrated to ensure an exact GPS heading and accurate route navigation, because the magnetometer tells the flight controller which way the aircraft points and the controller fuses that heading with satellite position to hold a track, fly a waypoint route and return home correctly. A longer ESC runtime is set by capacity, weight and wind, and no calibration lengthens it. A sharper FPV camera focus is a matter for the lens and gimbal, which take no input from the magnetometer. And IMU damping of pitch is tuned from the accelerometers and rate gyros, a sensor set separate from the compass.
- How should a remote pilot handle discrepancies found in the UAS maintenance log?
- Correct the flagged entries before the next flight departure
- Dispatch the flagged entries to the drone manufacturer today
- Ignore the flagged entries whenever they appear fairly minor
- Reschedule the takeoff while the flagged entries sit unfixed
Correct answer: Correct the flagged entries before the next flight departure
Correct answer: Correct the flagged entries before the next flight departure. Explanation: The remote pilot in command is responsible for determining the aircraft is in a condition for safe operation, so an open discrepancy has to be resolved and the resolution recorded before the aircraft flies again. Sending the entries to the manufacturer may be a sensible parallel step but it hands the airworthiness decision to someone who is not the pilot in command and does not clear the aircraft. Judging a discrepancy small enough to skip is exactly the reasoning that lets a cracked arm or a swollen cell reach the air. Rescheduling only moves the same unresolved defect to a later launch.
- Why should a UAS be inspected after every flight?
- To alter the payload for a future scheduled flight survey
- To examine the airframe for damage produced by the flight
- To charge the battery packs before the next flight launch
- To stage the aircraft inside its own flight storage space
Correct answer: To examine the airframe for damage produced by the flight
Correct answer: To examine the airframe for damage produced by the flight. Explanation: A post-flight inspection exists to catch what the sortie just did to the aircraft: hairline cracks in arms or props, loosened fasteners, chafed wiring, a hot or swollen battery. Finding that damage now is what stops it from becoming a failure in the air on the following flight. Changing the payload is mission configuration, not a condition check, and can be done whether or not an inspection happened. Charging the packs is servicing; it restores energy but reveals nothing about structural condition. Putting the aircraft away is housekeeping and can conceal damage rather than reveal it.
- A sectional chart shows an airport surrounded by a solid magenta circle, with the notation "41/SFC" displayed inside a segmented box near the boundary. What airspace is depicted and what authorization does a remote pilot need to operate there?
- Class D airspace under a charted 4,100 ft AGL cap; the CTAF broadcast replaces authorization
- Class B airspace whose shelf base sits at 4,100 ft MSL; DroneZone waiver gives authorization
- Class C airspace from the ground surface to 4,100 ft MSL; advance ATC authorization required
- Class E airspace based overhead at 4,100 ft MSL; a quick NOTAM review confirms authorization
Correct answer: Class C airspace from the ground surface to 4,100 ft MSL; advance ATC authorization required
Correct answer: Class C airspace from the ground surface to 4,100 ft MSL; advance ATC authorization required. Explanation: A solid magenta circle around an airport depicts Class C airspace, and a segmented box reading 41/SFC gives a ceiling of 4,100 ft MSL over a floor at the surface. Part 107 operations there need prior ATC authorization under 14 CFR 107.41, normally issued through LAANC. Class D is drawn with a dashed blue line, and a broadcast on CTAF is a courtesy that authorizes nothing. Class B is drawn with solid blue lines, and a DroneZone waiver covers rule deviations rather than airspace entry. Class E starting overhead would be drawn as a vignette or dashed magenta line, and reading a NOTAM grants no entry.
- On a sectional chart, an airport is enclosed by a dashed blue circle. The remote pilot wants to fly within that circle. What type of airspace is this, and what is required before launching?
- Class E surface airspace; ATC authorization is mandatory before each planned launch
- Class C airspace; two-way radio contact satisfies the entry requirement before takeoff
- Class G airspace; a DroneZone waiver opens the airspace for each planned flight
- Class D airspace; preflight ATC authorization is mandatory before each planned takeoff
Correct answer: Class D airspace; preflight ATC authorization is mandatory before each planned takeoff
A dashed blue circle depicts Class D airspace; preflight ATC authorization is mandatory before each planned takeoff under 14 CFR 107.41, normally obtained through LAANC. Class E reaching the surface is drawn in dashed magenta rather than dashed blue, so the class named there is wrong even though authorization would also be required. Class C is drawn as a solid magenta circle, and the two-way radio contact rule applies to manned aircraft rather than to a small unmanned aircraft. Class G is shown by the absence of any boundary, and a DroneZone waiver deviates from an operating rule instead of opening controlled airspace.
- A remote pilot sees an area on the sectional enclosed by a dashed magenta line surrounding a small airport. What does this depict?
- Class E airspace dropping well down onto the field surface, guarding IFR approaches
- Class D airspace drawn around a towered field, demanding a clearance before takeoff
- Class B airspace whose lowest shelf hangs above the field, stacked into solid rings
- Class G airspace holding a charted alert area, active during the published hours
Correct answer: Class E airspace dropping well down onto the field surface, guarding IFR approaches
A dashed magenta line encircling an airport depicts Class E airspace dropping well down onto the field surface, guarding IFR approaches, since that airspace is designated to begin at the ground so instrument arrivals and departures stay inside controlled airspace. Class D is drawn with a dashed blue line rather than a magenta one, whatever clearance it demands. Class B is drawn in solid blue and its shelves sit over a major terminal area, not around a small field. Class G is uncontrolled and is shown by the absence of a boundary, and an alert area carries its own magenta hatched border with a lettered name.
- An airport on the sectional lies beneath a Class C shelf depicted by a segmented box reading "41/12." What do these numbers represent?
- The digits mean a 41,000 ft MSL ceiling above a 12,000 ft floor
- The box indicates a 4,100 ft MSL ceiling above a 1,200 ft floor
- The pair shows a 41 NM outer radius around a 12 NM inner circle
- The shelf descends from 4,100 ft AGL down to the airport ground
Correct answer: The box indicates a 4,100 ft MSL ceiling above a 1,200 ft floor
Correct answer: The box indicates a 4,100 ft MSL ceiling above a 1,200 ft floor. Explanation: Numbers in a segmented airspace box are hundreds of feet MSL, top over bottom, so 41/12 gives a shelf ceiling of 4,100 ft MSL over a shelf floor of 1,200 ft MSL, and the air below 1,200 ft MSL there is not Class C. Reading 41,000 over 12,000 inflates the tier tenfold and would push the shelf into the flight levels. The numbers are altitudes rather than distances, so they never express an outer radius or an inner ring in nautical miles. And the shelf does not descend to the airport ground, because the lower figure is a charted floor quoted MSL rather than AGL.
- A magenta vignette (faded magenta shading on the inside of a line) surrounds an area on the sectional chart. What is the floor of the Class E airspace it represents?
- 400 ft AGL, the Part 107 restriction inside Class G airspace
- 500 ft AGL, the safe aircraft minimum above Class G farmland
- 700 ft AGL, the standard Class E transition base near fields
- 1,200 ft AGL, the common Class E floor over remote districts
Correct answer: 700 ft AGL, the standard Class E transition base near fields
Correct answer: 700 ft AGL, the standard Class E transition base near fields. Explanation: A faded magenta vignette marks a Class E transition area whose floor sits 700 ft above the ground, lowered from the usual base so that instrument traffic is inside controlled airspace on approach. The faded blue vignette is the symbol for a 1,200 ft AGL Class E floor, which is the wider en route case rather than the magenta one. 400 ft AGL is the Part 107 operating ceiling from 14 CFR 107.51 and describes where the aircraft may fly, not where controlled airspace begins. 500 ft AGL is the manned-aircraft minimum safe altitude over open country under 14 CFR 91.119 and has nothing to do with the vignette.
- A remote pilot plans to operate in airspace shown on the sectional as having no surrounding solid or dashed colored airspace lines and no shading near the ground. The operating area is below 1,200 ft AGL in this region. What airspace class is this, and what authorization is needed?
- Class D controlled airspace; an ATC authorization becomes compulsory beforehand
- Class E transitional airspace; a LAANC authorization underwrites this operation
- Class B terminal airspace; a DroneZone COA authorization substitutes altogether
- Class G uncontrolled airspace; the ATC authorization stays entirely unnecessary
Correct answer: Class G uncontrolled airspace; the ATC authorization stays entirely unnecessary
Correct answer: Class G uncontrolled airspace; the ATC authorization stays entirely unnecessary. Explanation: Sectionals show Class G by the absence of a symbol: no solid or dashed boundary and no vignette shading near the ground means the airspace below the overlying controlled airspace is uncontrolled, and 14 CFR 107.41 requires authorization only in Class B, C, D and surface Class E. Class D would be drawn with a dashed blue line and would require authorization. A Class E transition area would show a faded magenta or blue vignette, and LAANC issues authorization rather than removing the need for it. Class B would be drawn with solid blue lines, and a DroneZone waiver covers rule deviations, not airspace entry.
- On a sectional chart, an airport is encircled by a solid blue line. A remote pilot wishes to operate within it. What airspace is depicted and what must the pilot do?
- Class B airspace; the pilot first obtains prior ATC authorization locally
- Class C airspace; the pilot merely monitors CTAF instead of authorization
- Class D airspace; the pilot sidesteps authorization underneath 400 ft AGL
- Class E airspace; the pilot inherits automatic authorization below 400 ft
Correct answer: Class B airspace; the pilot first obtains prior ATC authorization locally
Correct answer: Class B airspace; the pilot first obtains prior ATC authorization locally. Explanation: A solid blue line on a sectional depicts Class B airspace, and 14 CFR 107.41 forbids a small unmanned aircraft from operating there without prior authorization from air traffic control, normally obtained through LAANC. Class C is drawn with solid magenta lines, and monitoring CTAF is a manned-aircraft courtesy that authorizes nothing. Class D is drawn with a dashed blue line and also demands authorization, so no altitude below 400 ft AGL exempts the flight. The 400 ft AGL ceiling is an operating limit under 14 CFR 107.51 and never grants access to controlled airspace on its own.
- A remote pilot examining a sectional finds a Class C airport. The inner core ring shows "41/SFC" and an outer shelf ring shows "41/13." The pilot wants to fly at 200 ft AGL directly beneath the outer shelf, where the terrain elevation is about 600 ft MSL. Is ATC authorization required?
- No, because the pilot has told the airport FBO operator about the area
- No, because 800 ft MSL remains underneath the 1,300 ft MSL shelf floor
- Yes, because a flight under the Class C ring still needs ATC clearance
- Yes, because the operation stands inside 5 NM of the Class C aerodrome
Correct answer: No, because 800 ft MSL remains underneath the 1,300 ft MSL shelf floor
Correct answer: No, because 800 ft MSL remains underneath the 1,300 ft MSL shelf floor. Explanation: The outer ring box reading 41/13 puts the shelf floor at 1,300 ft MSL, so the Class C airspace in that ring does not begin until 1,300 ft MSL. A flight at 200 ft AGL over terrain of about 600 ft MSL reaches roughly 800 ft MSL, which is beneath the shelf and therefore in uncontrolled airspace where no ATC authorization is needed. Telling the airport operator is courteous but is not the reason authorization is unnecessary. The airspace beneath a shelf is not itself Class C, which is why the floor altitude is charted at all. Class C has no blanket 5 NM proximity rule for small unmanned aircraft.
- What is the maximum altitude a small unmanned aircraft may be operated under Part 107 without a waiver, and what is the exception?
- 400 ft AGL, or 1,000 ft over the tallest obstacle under 2,000 ft
- 500 ft AGL, with the tower allowance dropped fully by 14 CFR 107
- 400 ft AGL, or 400 ft above a structure positioned within 400 ft
- 400 ft MSL, read up from mean sea level despite the local ground
Correct answer: 400 ft AGL, or 400 ft above a structure positioned within 400 ft
Correct answer: 400 ft AGL, or 400 ft above a structure positioned within 400 ft. Explanation: 14 CFR 107.51 caps a small unmanned aircraft at 400 ft above the ground, and the single exception lets the aircraft climb to 400 ft above a structure's immediate uppermost limit while it stays within a 400 ft radius of that structure. The 1,000 ft over the highest obstacle within 2,000 ft figure belongs to the manned-aircraft congested-area rule in 14 CFR 91.119 and does not apply to Part 107. There is no 500 ft ceiling for Part 107, and the structure allowance was never removed. The limit is expressed above ground level, not above mean sea level, so terrain height moves the ceiling with it.
- A remote pilot wants to operate in controlled airspace near a towered airport that participates in LAANC. What does LAANC provide?
- A blanket authorization releasing controlled airspace flights from FAA Part 107 rules
- An automatic authorization to exceed 400 ft AGL within controlled airspace nationwide
- A manual ATC authorization for controlled airspace released after roughly 90 weekdays
- Near real-time authorization for controlled airspace up to published UAS Map ceilings
Correct answer: Near real-time authorization for controlled airspace up to published UAS Map ceilings
Correct answer: Near real-time authorization for controlled airspace up to published UAS Map ceilings. Explanation: LAANC, the Low Altitude Authorization and Notification Capability, checks a requested operation against the UAS Facility Map grid for the airport and returns an authorization within seconds, valid up to the ceiling published for that grid square. It authorizes airspace entry only; every other Part 107 operating rule still applies, so it is not a blanket waiver. It does not raise the 400 ft AGL limit, and nowhere does it grant nationwide permission to climb higher. Further coordination requests handled manually by the facility are the slow path LAANC exists to replace, not what LAANC itself provides.
- A temporary flight restriction (TFR) has been issued over a stadium during a major sporting event. What is the remote pilot's obligation?
- The pilot keeps clear of the TFR lateral plus vertical limits unless permitted
- The pilot penetrates the TFR perimeter as soon as the sporting event concludes
- The pilot operates inside the TFR volume while remaining underneath 400 ft AGL
- The pilot flies within the TFR whenever a trained visual observer stands watch
Correct answer: The pilot keeps clear of the TFR lateral plus vertical limits unless permitted
Correct answer: The pilot keeps clear of the TFR lateral plus vertical limits unless permitted. Explanation: A temporary flight restriction defines a volume of airspace, and a Part 107 flight inside that volume is prohibited for its duration unless the pilot holds a specific authorization for it; stadium restrictions cover a three nautical mile radius up to 3,000 ft AGL from one hour before to one hour after the event. Waiting until the event ends is wrong because the restriction runs past the final whistle and the charted end time governs, not the scoreboard. Staying under 400 ft AGL does not help, because a stadium restriction starts at the surface. A visual observer improves the operation but grants no relief from a restriction.
- Before a flight, a remote pilot should check NOTAMs primarily to learn about what?
- The current density altitude broadcast by the destination field ATIS report
- Temporary hazards such as a TFR, blocked runways, or unlighted obstructions
- The forecast winds aloft, cloud ceilings, and the convective SIGMET outlook
- Registration status of the local manned aircraft recorded in FAA registries
Correct answer: Temporary hazards such as a TFR, blocked runways, or unlighted obstructions
Correct answer: Temporary hazards such as a TFR, blocked runways, or unlighted obstructions. Explanation: Notices to Air Missions carry the time-critical, temporary information a chart cannot show: flight restrictions, airspace changes, closed or shifted runways, unlit towers and cranes, and outages of navigation aids in the operating area. Density altitude is a performance figure the pilot computes from temperature, altimeter setting and elevation, and no notice publishes it. Winds, ceilings and convective outlooks come from weather products such as the TAF and the convective advisory, which are issued separately from notices. Aircraft registration is a matter of the FAA registry and has nothing to do with preflight hazard awareness.
- At a non-towered airport within Class G airspace, a remote pilot hears manned aircraft announcing positions on a frequency. What is this frequency called and what should the remote pilot do?
- The UNICOM frequency; the pilot seeks a departure advisory before each launch
- The ARTCC frequency; the pilot negotiates the radio clearance days in advance
- The CTAF frequency; the pilot monitors it for adjacent manned arrival traffic
- The ATIS frequency; the pilot broadcasts the whole planned flight route there
Correct answer: The CTAF frequency; the pilot monitors it for adjacent manned arrival traffic
Correct answer: The CTAF frequency; the pilot monitors it for adjacent manned arrival traffic. Explanation: At a non-towered field, manned pilots self-announce position and intentions on the common traffic advisory frequency, so a remote pilot who listens to it knows where the traffic is and can yield right of way as 14 CFR 107.37 requires. UNICOM is an air-to-ground service run by a fixed base operator and issues no departure advisories a remote pilot could act on. The center frequency handles en route traffic and issues no clearances to a small unmanned aircraft. The automatic terminal information service is a recorded broadcast, so nothing a remote pilot transmits on it would be heard.
- A remote pilot encounters an area on the sectional marked as a Restricted Area (e.g., "R-2503") with published altitudes and times. What does this designation mean?
- A published VFR practice area inviting the local student traffic when open
- A permanent military zone barring the nonparticipating public when charted
- A depicted MOA airspace entered at the civil pilot's discretion when active
- A hazardous FAA area needing the controlling agency's approval when active
Correct answer: A hazardous FAA area needing the controlling agency's approval when active
Correct answer: A hazardous FAA area needing the controlling agency's approval when active. Explanation: A restricted area such as R-2503 confines activity hazardous to nonparticipating aircraft, artillery fire, guided missiles or aerial gunnery, and while it is active the pilot needs clearance from the controlling or using agency before entering. It is not a practice area drawing student traffic, since entry there is limited rather than encouraged. It is not permanently sealed either, because the chart panel publishes the altitudes and times when the restriction applies and the airspace is released outside them. And a band of military activity that nonparticipating pilots may cross at their own discretion is a military operations area, a different designation entirely.
- A sectional shows a Class B airport with the airspace box for one tier reading "100/30." The remote pilot is at a location under this tier. What does this indicate about the Class B floor and ceiling there?
- The Class B ceiling reaches 10,000 ft MSL over a 3,000 ft floor
- The Class B ring spreads 30 NM outward beneath a 10,000 ft roof
- The Class B boundary lies 1,000 ft MSL above a 300 ft underside
- The Class B airspace rises from the surface up to 13,000 ft MSL
Correct answer: The Class B ceiling reaches 10,000 ft MSL over a 3,000 ft floor
Correct answer: The Class B ceiling reaches 10,000 ft MSL over a 3,000 ft floor. Explanation: Numbers in an airspace box are hundreds of feet MSL with the ceiling written over the floor, so 100/30 means a tier that tops out at 10,000 ft MSL and whose base is 3,000 ft MSL at that location. The figures are altitudes, so neither one expresses a radius in nautical miles from the primary airport. Reading them as 1,000 and 300 drops a factor of ten and would place an airline terminal area a few hundred feet off the ground. Class B is layered like an inverted wedding cake, so only the innermost tier reaches the surface and this outer tier plainly does not.
- A remote pilot wishes to operate in Class E surface airspace (depicted by a dashed magenta line) around a non-towered airport. Is ATC authorization required?
- Yes, because Class E surface airspace demands authorization whenever ceilings descend lower
- Yes, because Class E surface airspace counts as controlled airspace requiring authorization
- No, because Class E surface airspace remains uncontrolled needing authorization from nobody
- No, because Class E surface airspace beside untowered fields grants automatic authorization
Correct answer: Yes, because Class E surface airspace counts as controlled airspace requiring authorization
Correct answer: Yes, because Class E surface airspace counts as controlled airspace requiring authorization. Explanation: Class E designated to the surface, drawn with a dashed magenta line, is controlled airspace, and 14 CFR 107.41 requires prior ATC authorization for any Part 107 operation inside it. The weather figures of a 1,000 ft ceiling and three statute miles are the basic VFR minimums for manned aircraft and do not decide whether authorization is needed. Class E is not uniformly uncontrolled; the portions that reach the surface are exactly the controlled ones. The lack of a control tower changes nothing, because the authorization is issued by the facility that controls the airspace, tower or not.
- A METAR reports: "...VIS 1/2SM FG..." Which condition is being reported and how would it affect a Part 107 operation?
- The METAR segment reports 1/2 nautical mile within haze, yet well inside the daytime VFR rule.
- The METAR segment reports 12 statute miles within fog, far safer than the charted legal limit.
- The METAR segment reports 1/2 statute mile within fog, short of the 3 SM regulatory threshold.
- The METAR segment reports 1/2 statute mile within fog, although 3 SM constrains Class B alone.
Correct answer: The METAR segment reports 1/2 statute mile within fog, short of the 3 SM regulatory threshold.
"1/2SM" is one-half statute mile of visibility and "FG" is the METAR code for fog, so the report reads one-half statute mile in fog, short of the 3 statute mile flight visibility minimum in 14 CFR 107.51, and the flight is not legal. The unit is statute, not nautical, and there is no relaxed daytime visibility rule for Part 107. The group reads one-half, not twelve, so it is nowhere near clearer than the limit. The 3 statute mile floor applies to every Part 107 operation from the control station, not to Class B airspace alone.
- A METAR includes the group "24015G25KT." What does this tell the remote pilot about the wind?
- Wind flows from 240 degrees true at 15 knots, variable through 25 degrees either side.
- Wind flows from 150 degrees true at 25 knots, alongside a 24 knot crosswind component.
- Wind flows from 240 degrees true at 25 knots, later 15 knots within occasional pauses.
- Wind flows from 240 degrees true at 15 knots, with intermittent gusts toward 25 knots.
Correct answer: Wind flows from 240 degrees true at 15 knots, with intermittent gusts toward 25 knots.
In a METAR wind group the first three digits give direction in degrees true, the next two give the sustained speed in knots, and the figure after G gives the gust. So 24015G25KT is wind from 240 degrees true at 15 knots with peak gusts near 25 knots. The G marks a gust, not a 25 degree spread of directions, so nothing is variable either side. The direction is 240, not 150; the 24 belongs to the direction and is not a crosswind figure. The sustained value is the smaller number and the gust is the larger, so it is not 25 knots dropping to 15 in lulls.
- What is density altitude, and why does it matter to a small UAS operator?
- It is pressure altitude corrected for nonstandard OAT, so thin air badly curbs rotor lift.
- It is the altitude of the thickest overcast blanket, so the AGL ceiling limits operations.
- It is the altitude where a barometer quits, so MSL readings scarcely trouble drone pilots.
- It is the altitude an altimeter reads with ISA settings, so thrust plus endurance improve.
Correct answer: It is pressure altitude corrected for nonstandard OAT, so thin air badly curbs rotor lift.
Density altitude is pressure altitude corrected for nonstandard temperature, so heat, elevation, and humidity thin the air until propellers produce less thrust and performance degrades. It is not the height of a cloud deck, which drives cloud clearance rather than air density. It is not a level where a barometer stops reading, since barometers keep working in thin air. It is not simply the altimeter indication under standard pressure either, and a higher density altitude cuts thrust and shortens endurance instead of improving them.
- Which combination of conditions produces the HIGHEST density altitude, degrading sUAS performance the most?
- Frigid dense air, a coastal airstrip along the seashore, plus bone dry desert conditions.
- Torrid thin air, a mountain airfield well above sea level, plus steamy tropical moisture.
- Chilly stable air, a strong pressure ridge perched overhead, plus arid winter dew points.
- Higher barometric readings, a deep valley strip near town, plus muggy August water vapor.
Correct answer: Torrid thin air, a mountain airfield well above sea level, plus steamy tropical moisture.
Density altitude climbs with temperature, with elevation, and with moisture, so torrid thin air at a mountain airfield well above sea level with heavy tropical moisture gives the thinnest air and the worst performance. Frigid dense air at a coastal airstrip is the opposite case and yields the lowest density altitude. Chilly stable air under a strong pressure ridge with arid dew points also raises air density rather than lowering it. Higher barometric readings at a low valley strip push air density up as well, so the muggy vapor there cannot offset them.
- A TAF contains the group "FM1500 27012KT P6SM SCT040." What does "P6SM" indicate?
- Forecast visibility holds at exactly 6 SM through the entire valid period.
- Forecast visibility sits at 6 nautical miles across the whole valid period.
- Forecast visibility runs greater than 6 SM across the entire valid period.
- Forecast visibility marks a stated probability of 6 SM inside shallow fog.
Correct answer: Forecast visibility runs greater than 6 SM across the entire valid period.
Correct answer: Forecast visibility runs greater than 6 SM across the entire valid period. The P stands for plus, so P6SM forecasts visibility exceeding 6 statute miles, and it holds for the whole of that FM group. Forecast visibility holds at exactly 6 SM through the entire valid period drops the P and reads a floor as a precise value. Forecast visibility sits at 6 nautical miles across the whole valid period misreads SM, which is statute miles in aviation weather. Forecast visibility marks a stated probability of 6 SM inside shallow fog confuses the P with a probability, which a TAF publishes in a separate PROB group and pairs with a named phenomenon.
- What atmospheric stability condition is most associated with the formation of fog and poor visibility near the surface?
- Unstable air, which drives brisk upward currents and sweeps damp surface haze aloft.
- Neutral air, which absorbs fierce midday surface warmth and stirs the lowest levels.
- Inverted air, which hoists trapped vapor skyward and dries the entire surface layer.
- Stable air, which prevents vertical motion and holds moisture near the cool surface.
Correct answer: Stable air, which prevents vertical motion and holds moisture near the cool surface.
Stable air resists vertical motion, so moisture, haze, and fog collect in the lowest layer and surface visibility falls. Unstable air drives brisk upward currents that mix the low levels and carry haze away rather than trapping it. Neutral air under fierce surface warmth also stirs the boundary layer instead of holding moisture down. A temperature inversion is itself a stable condition, but it caps moisture beneath the warm layer rather than hoisting it skyward, so it does not dry the surface.
- What is the relationship between temperature and dew point that signals fog or low clouds are likely to form?
- A dew point close to the temperature signals saturation, so shallow ground mist arises.
- A dew point far under the temperature signals imminent fog, so thicker haze approaches.
- A dew point ten degrees over the temperature signals drier air, so visibility improves.
- A dew point past fifteen Celsius signals vapor, so cloud forms despite the temperature.
Correct answer: A dew point close to the temperature signals saturation, so shallow ground mist arises.
A dew point close to the temperature is a small spread, which means the air is near saturation and shallow ground mist or low stratus is likely. A dew point far under the temperature is a wide spread and dry air, so fog is unlikely rather than imminent. A dew point ten degrees over the temperature does not occur in the free atmosphere and would not signal improving visibility anyway. No fixed dew point value such as fifteen Celsius guarantees cloud either; what matters is the spread between the two figures.
- Which official source is the most appropriate for a remote pilot to obtain a comprehensive preflight weather briefing?
- A smartphone NWS application that pairs radar loops with the local city hourly forecast.
- Aviation Weather Center products that combine with an FAA channel named 1800wxbrief.com.
- A nightly television segment that blends regional radar with the metropolitan outlook.
- The B4UFLY app that merges airspace advisories with a full preflight weather briefing.
Correct answer: Aviation Weather Center products that combine with an FAA channel named 1800wxbrief.com.
The comprehensive briefing comes from Aviation Weather Center products that combine with an FAA channel named 1800wxbrief.com, which together deliver the METARs, TAFs, AIRMETs, SIGMETs and TFR information a remote pilot needs before flight. A consumer smartphone application shows radar and a city forecast while carrying none of those aviation products. A nightly television segment is produced for the general public rather than for preflight planning. And B4UFLY maps airspace and advisories but supplies no weather briefing at all.
- A METAR reports "OVC008." If a remote pilot intends to operate at 200 ft AGL, why is the cloud clearance requirement still important to evaluate?
- The 800 ft overcast bars the launch outright, since 107.31 forbids flight beneath a ceiling.
- The 800 ft overcast matters little, since 107.51 exempts a flight planned below 400 ft AGL.
- The 800 ft overcast leaves 300 ft AGL available, since 107.51 stipulates 500 ft separation.
- The 800 ft overcast grounds the flight, since 91.155 demands 1,000 ft of vertical clearance.
Correct answer: The 800 ft overcast leaves 300 ft AGL available, since 107.51 stipulates 500 ft separation.
Correct answer: The 800 ft overcast leaves 300 ft AGL available, since 107.51 stipulates 500 ft separation. OVC008 is an overcast ceiling at 800 ft AGL, and 14 CFR 107.51 requires the aircraft to stay at least 500 ft below the cloud, so only the airspace up to 300 ft AGL remains usable and the planned 200 ft flight complies once that clearance is checked. The 800 ft overcast bars the launch outright, since 107.31 forbids flight beneath a ceiling misstates 107.31, which governs visual line of sight and says nothing about ceilings. The 800 ft overcast matters little, since 107.51 exempts a flight planned below 400 ft AGL invents an exemption, because cloud clearance applies at every altitude flown under Part 107. The 800 ft overcast grounds the flight, since 91.155 demands 1,000 ft of vertical clearance borrows a manned VFR figure that is the distance above cloud, not below.
- How does a strong, gusty wind most directly threaten a small multirotor UAS operation?
- It thickens the ambient air, raises rotor RPM slightly, and trims the useful flight radius.
- It reaches the four rotors, meets instant ESC trim, and leaves the ground track unaffected.
- It threatens above 20 knots, the surface limits FAA rules impose, and stays harmless below.
- It defeats steady position hold, drains the main pack fast, and harms precise VLOS control.
Correct answer: It defeats steady position hold, drains the main pack fast, and harms precise VLOS control.
Strong gusty wind defeats steady position hold, drains the battery pack faster because the motors fight to stay put, and makes precise control within visual line of sight much harder. Wind does not thicken the air or raise rotor performance; if anything it costs endurance. A flight controller corrects only within its control authority, so the ground track does change once gusts exceed that authority. Part 107 sets no surface wind limit, so 20 knots is not a threshold below which gusts are harmless.
- Which of the five hazardous attitudes is best countered by the antidote "Follow the rules; they are usually right"?
- Anti-authority, the posture that shrugs off a written procedure.
- Impulsivity, the compulsion that pounces upon an early instinct.
- Invulnerability, the belief that mishaps strike the other pilot.
- Resignation, the sense that results sit beyond personal control.
Correct answer: Anti-authority, the posture that shrugs off a written procedure.
The antidote "Follow the rules; they are usually right" answers anti-authority, the outlook that shrugs off a written procedure. Impulsivity is the urge to act on a first idea, and its antidote is "Not so fast, think first." Invulnerability is the belief that accidents strike the other pilot, answered by "It could happen to me." Resignation is the sense that outcomes sit beyond personal control, answered by "I am not helpless." The five hazardous attitudes are anti-authority, impulsivity, invulnerability, macho, and resignation.
- A remote pilot thinks, "It won't happen to me," while skipping a preflight inspection. Which hazardous attitude is this and what is its antidote?
- Macho, answered by the reminder that gambles invite catastrophe.
- Invulnerability, answered by the reminder that harm reaches you.
- Resignation, answered by the reminder that effort still matters.
- Anti-authority, answered by the reminder that rules mostly work.
Correct answer: Invulnerability, answered by the reminder that harm reaches you.
Believing that an accident will not happen to you is invulnerability, answered by the reminder that mishaps reach anyone, and recognizing personal risk is what drives a thorough preflight. Macho is the urge to prove skill by taking chances, a different thought entirely. Resignation is the belief that effort no longer matters, which is not what skipping an inspection expresses. Anti-authority is contempt for the rules themselves rather than a belief in personal immunity.
- What does the "DECIDE" model or aeronautical decision-making (ADM) primarily help a remote pilot do?
- Compute density altitude and balance figures, then trim the intended payload.
- Memorize the complete Part 107 regulations, and then reproduce them verbatim.
- Detect a variation and evaluate it, then intervene and reassess consequences.
- Erase operational hazards and residual risk, then launch in total confidence.
Correct answer: Detect a variation and evaluate it, then intervene and reassess consequences.
Aeronautical decision-making and the DECIDE model give the remote pilot a structured way to detect a change and weigh it, then act and review results, which is how risk is managed in flight. They do not compute density altitude or balance figures; those come from performance charts and a weight and balance calculation. They do not require memorizing the regulations word for word. And no decision model erases operational hazards or residual risk, because risk is managed rather than removed.
- During flight the control link to the sUAS is lost. What is the most appropriate first response for a well-prepared remote pilot?
- Leave the GCS behind and wander off for external assistance.
- Kill the RC transmitter output and force an instant descent.
- Telephone air traffic control and the FAA to report failure.
- Let the lost-link RTH routine run and keep bystanders clear.
Correct answer: Let the lost-link RTH routine run and keep bystanders clear.
A prepared remote pilot lets the lost-link RTH routine run and keeps bystanders clear, because the aircraft's programmed behavior is already known and the people under the flight path are what needs protecting. Leaving the ground control station abandons the operation at the moment supervision matters most. Killing transmitter power destroys the link the aircraft might still reacquire and invites an uncontrolled descent. Telephoning air traffic control and the FAA is a later reporting step, not the first response.
- How does fatigue most directly degrade a remote pilot's performance?
- It slows reaction, clouds judgment, and badly erodes VLOS situational awareness.
- It sharpens focus, floods fresh adrenaline, and firmly steadies RC commands.
- It weakens muscle strength, tires the limbs, and barely dents ADM reasoning.
- It arrives after nightfall, spares daylight flights, and neatly obeys FAA limits.
Correct answer: It slows reaction, clouds judgment, and badly erodes VLOS situational awareness.
Fatigue slows reaction, clouds judgment, and badly erodes VLOS situational awareness, which is why a tired remote pilot is a hazard to the operation. It does not sharpen focus or steady the controls, since an adrenaline surge is brief and restores no judgment. It reaches well past muscle strength, because decision quality degrades before the arms tire. And Part 107 sets no duty-time limit, so a daylight operation is no protection from it either.
- When scanning the sky to keep an unmanned aircraft in sight, why is it sometimes effective to look slightly to the side of a distant object rather than directly at it in very low light?
- Cones outperform rods in weak light, so a sideways glance relaxes them.
- Rods beat cones in darkness, so a sideways glance catches faint shapes.
- Cones plus rods both fade, so a sideways glance replaces needed lights.
- Rods outdo cones on color, so a sideways glance reveals painted badges.
Correct answer: Rods beat cones in darkness, so a sideways glance catches faint shapes.
The rods that carry night vision lie outside the central fovea and are more sensitive than the cones in darkness, so a sideways glance catches faint shapes that central vision misses. Cones work best in bright light rather than dim light, so resting them is not the mechanism. Off-center viewing never replaces the anti-collision lighting required for night operations. And color vision belongs to the cones; rods are essentially colorblind.
- A remote pilot under significant time pressure decides to launch without checking for a TFR, reasoning, "Do something quickly!" Which hazardous attitude is this and its antidote?
- Anti-authority, cured by renewed respect for the printed rulebook.
- Resignation, cured by recovered confidence in one's own influence.
- Impulsivity, cured by a deliberate pause for unhurried reflection.
- Invulnerability, cured by honest awareness of one's real exposure.
Correct answer: Impulsivity, cured by a deliberate pause for unhurried reflection.
Launching in a hurry without checking for a TFR is impulsivity, cured by a deliberate pause for careful thought, which is the antidote "Not so fast, think first." Anti-authority is contempt for the rulebook rather than haste. Resignation is the belief that personal influence is gone, which is not what a rushed launch shows. Invulnerability is the belief that harm lands on other people, again a different failure from acting too fast.
- What is the primary purpose of Crew Resource Management (CRM) in a multi-person sUAS operation?
- It hands the VO full legal command and complete operational responsibility.
- It frees the RPIC from continuous vigilance and unaided visual observation.
- It satisfies an FAA requirement for observers and mandatory personnel size.
- It assembles available crew expertise and hardware for safer UAS decisions.
Correct answer: It assembles available crew expertise and hardware for safer UAS decisions.
Crew Resource Management pools the available crew skill and equipment so flight decisions are safer, which is exactly its purpose in a multi-person operation. It does not hand the visual observer command or legal responsibility, because the remote pilot in command keeps that. It does not free the RPIC from maintaining visual line of sight, which remains a requirement. And no FAA rule sets a minimum team size or demands an observer on every Part 107 flight.
- Why should a remote pilot avoid operating while taking a sedating over-the-counter medication such as certain antihistamines?
- They bring drowsiness and slow reaction, so judgment and alertness both fade.
- They sharpen vision and lift the mood, so pilots fly with unearned confidence.
- They calm the hands and settle nerves, so night crews often swallow them.
- They wear off in eight hours exactly, so the alcohol rule covers them.
Correct answer: They bring drowsiness and slow reaction, so judgment and alertness both fade.
Sedating antihistamines bring drowsiness and slow reaction, so judgment and alertness both fade and 14 CFR 107.17 bars the remote pilot from operating. They do not sharpen vision or lift the mood into safer flying, since sedation dulls both. They do not settle the nerves for a night crew, because nothing about a night operation calls for a sedative. And the eight-hour figure belongs to the alcohol rule; a sedating drug disqualifies for as long as its effects last, which is often far longer.
- A remote pilot notices unusual vibration and a frayed propeller during preflight. Applying sound maintenance judgment, what should the pilot do?
- Record the propeller discrepancy and continue, since Part 107 permits it.
- Ground the aircraft and replace the frayed propeller, since cracks widen.
- Fly a cautious propeller trial and observe, since weakness would surface.
- Cut the software throttle limits and proceed, since propeller loads drop.
Correct answer: Ground the aircraft and replace the frayed propeller, since cracks widen.
Sound maintenance judgment grounds the aircraft and replaces the frayed propeller, since cracks spread under load and a blade failure means loss of control. Logging the fault and launching ignores 14 CFR 107.15, which puts the aircraft's condition for safe operation squarely on the remote pilot, and Part 107 sets no annual inspection interval that would excuse the flight. A test hop invites the very failure it is meant to detect. Cutting throttle limits in software leaves a damaged blade spinning at flight speed.
- How can task saturation reduce a remote pilot's situational awareness during a complex operation?
- Saturation evaporates under GPS waypoint modes, since automation consumes the workload.
- Saturation heightens alertness, since an occupied pilot stays fully engaged throughout.
- Saturation splits attention, since one fixation hides the nearby surroundings entirely.
- Saturation reaches the visual observer, since an RPIC delegates practically everything.
Correct answer: Saturation splits attention, since one fixation hides the nearby surroundings entirely.
Task saturation splits attention, so the pilot fixates on one task and loses track of the aircraft, the airspace, and the surroundings. Automation does not remove saturation; waypoint and GPS modes add monitoring duties of their own. Saturation degrades focus rather than sharpening it, because attention is a limited resource. And it reaches the remote pilot in command as readily as the visual observer, since the RPIC still carries the decisions.
- A remote pilot facing a deteriorating situation thinks, "What's the use? It's out of my hands now." Which hazardous attitude is this and what is its antidote?
- Macho, met by the thought that bravado invites catastrophe.
- Anti-authority, met by the thought that rules largely help.
- Invulnerability, met by the thought that mishaps reach you.
- Resignation, met by the thought that effort changes things.
Correct answer: Resignation, met by the thought that effort changes things.
Feeling that the outcome is out of your hands is resignation, met by the thought that effort changes results, the antidote "I am not helpless, I can make a difference." Macho is the urge to prove skill by taking chances. Anti-authority is contempt for rules that mostly help. Invulnerability is the belief that mishaps reach everyone else and not you. Only resignation describes a pilot who has stopped trying to influence the outcome.
- What is the maximum total weight of a small unmanned aircraft system permitted to operate under Part 107?
- Under 55 pounds at takeoff, with the UAS wholly loaded, per 107.3.
- Under 25 pounds at takeoff, with the payload set aside, per 107.3.
- Under 100 pounds at takeoff, with the fuel load counted, per 107.3.
- Under 0.55 pounds at takeoff, with the camera left off, per 107.3.
Correct answer: Under 55 pounds at takeoff, with the UAS wholly loaded, per 107.3.
The limit is under 55 pounds at takeoff, with the UAS wholly loaded, per 107.3, because 14 CFR 107.3 defines a small unmanned aircraft by its weight at takeoff with everything on board included. The 25 pound figure is not a Part 107 threshold, and the payload is never set aside from the weighed total. The 100 pound figure sits far above the limit, and fuel or battery weight is already inside the 55 pounds rather than an addition to it. The 0.55 pound figure is the recreational registration floor, and a mounted camera is counted rather than left off.
- How does adding payload that shifts the center of gravity (CG) outside the manufacturer's limits typically affect a multirotor sUAS?
- It troubles fixed-wing craft alone, since multirotor software holds a level attitude.
- It undermines steady control, since the loaded UAS wanders into unpredictable motion.
- It strengthens stability, since the entire center of mass descends appreciably lower.
- It changes nothing, since automatic flight controllers compensate for a CG deviation.
Correct answer: It undermines steady control, since the loaded UAS wanders into unpredictable motion.
A center of gravity outside the manufacturer's limits defeats steady control, since the loaded aircraft wanders into erratic motion and can exceed what the flight controller is able to compensate for. It is not a fixed-wing problem alone, because a multirotor's software has to work harder and can run out of authority. It does not improve stability, since a displaced load creates a moment arm rather than a lower center of gravity. And it does not leave the aircraft unaffected, because controller correction has limits.
- On a hot, high-elevation day, how does a heavier payload combined with high density altitude affect a battery-powered sUAS?
- Thin air chills each battery pack, so its usable endurance stretches farther.
- Thin air spares the electric motors, so the power losses harm piston engines.
- Thin air starves the rotors, so climb performance plus endurance both shrink.
- Thin air steadies the loaded airframe, so handling calms as the weight rises.
Correct answer: Thin air starves the rotors, so climb performance plus endurance both shrink.
High density altitude means thin air starves the rotors, so climb performance plus endurance both shrink while the heavier payload demands still more power and the safety margin narrows. Air over a hot, high-elevation field is warm rather than cold, so nothing chills the battery pack into longer endurance. The penalty is not confined to piston engines, since a propeller in thin air moves less mass whatever turns it. And extra weight burdens the airframe rather than steadying it, so handling degrades as the load grows.
- Why is it important to verify a remaining battery margin before continuing a flight rather than flying until the battery is nearly empty?
- Cells recapture reserve capacity late in flight, so a low indication misleads.
- Part 107 establishes a 30 minute reserve, so additional margin looks optional.
- Reserve power matters after dark, so daylight flights safely skip it entirely.
- Voltage sags under heavy winter loads, so a reserve safeguards each touchdown.
Correct answer: Voltage sags under heavy winter loads, so a reserve safeguards each touchdown.
Battery voltage sags under heavy cold loads and under high demand, so a planned reserve is what protects the touchdown and prevents an in-flight power loss or flyaway. Cells do not recover capacity late in a flight; the indication falls faster near the end. Part 107 fixes no battery reserve at all, so the 30 minute figure is borrowed from manned VFR fuel planning rather than from the rule. And reserve power matters in daylight exactly as much as it does after dark.
- Under Part 107, within how many days must a remote pilot report an accident to the FAA if it results in serious injury or property damage of more than $500 (other than to the sUAS itself)?
- Within 10 calendar days, the accident clock 14 CFR 107.9 sets.
- Within 2 calendar days, the notice window 49 CFR 830 requires.
- Within 30 calendar days, the address update 14 CFR 47 permits.
- Within 90 calendar days, the waiver review 14 CFR 107.200 needs.
Correct answer: Within 10 calendar days, the accident clock 14 CFR 107.9 sets.
Correct answer: Within 10 calendar days, the accident clock 14 CFR 107.9 sets. That section gives the remote pilot 10 calendar days to report to the FAA any operation causing serious injury, loss of consciousness, or property damage of at least $500 other than to the sUAS itself. Within 2 calendar days, the notice window 49 CFR 830 requires belongs to the NTSB's immediate notification scheme, a separate reporting obligation. Within 30 calendar days, the address update 14 CFR 47 permits is registration paperwork rather than accident reporting. Within 90 calendar days, the waiver review 14 CFR 107.200 needs is the FAA's own lead time for processing a waiver request, not a deadline imposed on the pilot.
- What are the requirements for registering a small unmanned aircraft used under Part 107, and how must the registration be displayed?
- Registration covers drones beyond 25 lb, with the printed certificate kept securely indoors.
- Registration covers Part 107 drones at whatever weight, with numbers marked plainly outside.
- Registration covers drones above 0.55 lb upwards, with digits inside a toolless compartment.
- Registration covers drones as a purely voluntary gesture, with exterior marks left optional.
Correct answer: Registration covers Part 107 drones at whatever weight, with numbers marked plainly outside.
A small unmanned aircraft flown under Part 107 must be registered whatever it weighs, and the unique registration number has to be legibly marked on an exterior surface of the aircraft under 14 CFR Part 48. There is no 25 pound registration threshold, and a certificate kept indoors does not mark the aircraft. The 0.55 pound threshold applies to recreational flyers rather than Part 107, and current Part 48 marking rules require an exterior surface rather than an enclosed compartment. Registration is not voluntary for commercial work.
- A remote pilot wants to fly beyond visual line of sight, which Part 107 normally prohibits. What is the correct way to legally conduct such an operation?
- Station a chain of Visual Observers downrange, with each one holding sight.
- File the planned route in advance, with the nearest ATC Tower telephoned.
- Request an FAA Certificate of Waiver, with proof the flight remains safe.
- Stream live video from a chase aircraft, with a rated safety pilot aboard.
Correct answer: Request an FAA Certificate of Waiver, with proof the flight remains safe.
The visual line of sight limitation is waivable, so the lawful route is to request an FAA Certificate of Waiver, with proof the flight remains safe, under 14 CFR 107.200. Stationing a chain of Visual Observers downrange fails 107.31, which requires the remote pilot or one visual observer to keep the aircraft in unaided sight from where they stand. Filing the planned route in advance and telephoning the nearest ATC Tower authorizes nothing, since a tower separates traffic and issues no waivers. And streaming live video from a chase aircraft with a rated safety pilot aboard is exactly the camera-assisted flight the rule forbids without a waiver.
- What are the minimum eligibility requirements to obtain a Remote Pilot Certificate with a small UAS rating?
- Age 18, a private certificate, a valid physical, plus FAA vetting, per 107.61.
- Age 14, an online tutorial, a signed affidavit, plus TSA consent, per 107.61.
- Age 17, basic medical clearance, a practical exam, plus DOT review, per 107.61.
- Age 16, plain English fluency, a knowledge test, plus TSA checks, per 107.61.
Correct answer: Age 16, plain English fluency, a knowledge test, plus TSA checks, per 107.61.
14 CFR 107.61 sets age 16, plain English fluency, a knowledge test, plus TSA checks. There is no age 18 minimum and no private pilot certificate or physical anywhere in the Part 107 path. An age 14 online tutorial with a signed affidavit describes the recreational flyer route, which yields no certificate at all. And basic medical clearance with a practical exam belongs to manned certification, since Part 107 requires no medical of any class and holds no flight test.
- How often must a certificated remote pilot complete recurrent training to maintain currency under current Part 107 rules?
- One free FAA online refresher each 24 calendar months, per 107.65.
- A formal FAA knowledge retest each 12 calendar months, per 107.65.
- Three newly logged PIC flights each 3 calendar months, per 107.65.
- A paid FAA certificate renewal each 6 calendar months, per 107.65.
Correct answer: One free FAA online refresher each 24 calendar months, per 107.65.
A certificated remote pilot stays current by completing a free FAA online recurrent course every 24 calendar months under 14 CFR 107.65; since 2021 that course replaced the proctored recurrent knowledge test, so there is no 12 month retest at a testing center. Recency of flight experience such as three flights in 90 days is a manned-aircraft passenger-carrying rule and has no place in Part 107 currency. And the remote pilot certificate does not expire on a paid 6 month renewal cycle.
- Regarding alcohol, under what condition is a remote pilot prohibited from acting as RPIC of a small UAS?
- Within 12 hours after alcohol, under evident influence, or at 0.02% BAC.
- Within 8 hours after alcohol, under residual influence, or at 0.04% BAC.
- Within 4 hours after alcohol, under apparent influence, or at 0.08% BAC.
- Within 2 hours after alcohol, under moderate influence, or at 0.06% BAC.
Correct answer: Within 8 hours after alcohol, under residual influence, or at 0.04% BAC.
Under 14 CFR 107.27, which carries 91.17 across to remote pilots, the prohibition runs within 8 hours after alcohol, under residual influence, or at 0.04% BAC. Twelve hours and 0.02 percent overshoot the regulation in both directions and match no aviation rule. Four hours halves the required wait while 0.08 percent is the common highway limit, far above the aviation threshold. And 2 hours falls far short of the eight-hour bottle-to-throttle rule, with 0.06 percent already exceeding the concentration the section sets.
