CHST Domain 1: Hazard Identification and Control Welcome to your CHST Domain 1: Hazard Identification and Control 1. CHST: Hazard Identification and Control When assessing a construction site for potential electrical hazards, which of the following factors should NOT be considered a primary concern? The proximity of power lines to the work area The insulation condition of electrical cords The wattage of light bulbs used on site The grounding of electrical equipment None 2. CHST: Hazard Identification and Control In the context of hazard identification, what is the primary purpose of a Job Safety Analysis (JS A) To fulfill legal documentation requirements To identify potential hazards associated with each step of a job To provide a historical record of incidents To assign responsibilities for job tasks None 3. CHST: Hazard Identification and Control Which of the following is considered a leading indicator in construction safety performance? Number of reported incidents Frequency of safety audits Total hours lost to injuries Cost of workers' compensation claims None 4. CHST: Hazard Identification and Control Which of the following is a critical factor to consider when evaluating the risk of a chemical hazard on a construction site? The color of the chemical The pH level of the chemical The brand of the chemical The price of the chemical None 5. CHST: Hazard Identification and Control When implementing control measures for respiratory hazards in construction, what is the least effective method according to the hierarchy of controls? Elimination Substitution Engineering controls Personal protective equipment (PPE) None 6. CHST: Hazard Identification and Control What is the primary purpose of a lockout/tagout procedure in a construction setting? To ensure that machinery is properly labeled To prevent the accidental startup of equipment during maintenance To track the usage hours of equipment To comply with lighting standards on the construction site None 7. CHST: Hazard Identification and Control In construction, when is a confined space considered a "permit-required confined space"? When it is larger than 500 cubic feet When it contains a hazardous atmosphere When it is not fully enclosed When lighting inside the space exceeds 500 lumens None 8. CHST: Hazard Identification and Control What is the most critical aspect to monitor when using a gas detector in a construction area? The battery life of the device The specific gases the device is set to detect The color of the device's casing The manufacturer's logo visibility on the device None 9. CHST: Hazard Identification and Control Which of the following best describes the role of a safety data sheet (SDS) in managing chemical hazards on a construction site? Provides a detailed financial analysis of the chemical Offers instructions for the disposal of chemical containers Details potential hazards and handling instructions for a chemical Lists the suppliers of the chemical None 10. CHST: Hazard Identification and Control When considering the control of noise on a construction site, which of the following would be considered an engineering control? Providing earplugs to workers Implementing quiet hours when no loud work is permitted Using equipment designed to operate with less noise Training workers on the risks of noise exposure None 11. CHST: Hazard Identification and Control What is the significance of the 'flash point' of a substance on a construction site? It indicates the temperature at which the substance becomes invisible. It determines the temperature at which a substance can ignite. It measures the substance's resistance to freezing. It specifies the brightness of a substance when exposed to light. None 12. CHST: Hazard Identification and Control In the context of construction safety, what is the primary function of a 'wind sock'? To measure the speed of the wind on the construction site To indicate the direction of air flow for the dispersal of airborne contaminants To test the air quality for hazardous gases To provide a visual warning for overhead power lines None 13. CHST: Hazard Identification and Control Why is it important to consider the 'angle of repose' in construction site safety? It determines the maximum slope at which a pile of material will remain stable. It indicates the optimal angle for solar panel installation. It measures the angle at which a ladder should be placed against a wall. It specifies the angle for the maximum reach of a crane. None 14. CHST: Hazard Identification and Control What role does 'photoluminescence' play in construction safety? It is a method for detecting structural weaknesses in materials. It refers to materials that emit light without the need for power, used in safety signage. It is a technique used in the visual inspection of welds. It describes the effect of sunlight on the durability of construction materials. None 15. CHST: Hazard Identification and Control When assessing a site for biological hazards, what factor is crucial in the growth and presence of microbial contaminants? Ambient noise levels Availability of organic material and moisture The color of the construction materials The site's proximity to urban areas None 16. CHST: Hazard Identification and Control Which factor is critical when evaluating the stability of a trench in a construction site? The color of the soil The time of day The soil composition and moisture content The height of nearby structures None 17. CHST: Hazard Identification and Control In construction, what is the primary purpose of using a wet method when cutting or drilling materials known to produce respirable silica? To reduce noise pollution To minimize the generation of airborne dust To increase the speed of cutting or drilling To prevent overheating of the tools None 18. CHST: Hazard Identification and Control What is the primary hazard associated with the accumulation of combustible dust in a construction environment? Decreased visibility Increased risk of slips and falls Potential for explosive dust clouds Obstruction of ventilation systems None 19. CHST: Hazard Identification and Control When considering ergonomic hazards in construction, what factor is most critical in preventing musculoskeletal disorders among workers? The color scheme of the work environment The personal preferences of the workers The design of tools and the organization of workspaces The temperature of the work environment None 20. CHST: Hazard Identification and Control Why is it important to consider vibration levels when using power tools in construction? To ensure the tools are functioning correctly To reduce the risk of hand-arm vibration syndrome (HAVS) To comply with noise regulations To increase the precision of the tools None 21. CHST: Hazard Identification and Control What is the significance of the Upper Explosive Limit (UEL) in a construction environment? It indicates the maximum concentration of a vapor in the air above which an explosion is not possible. It represents the highest temperature at which a substance can be stored safely. It determines the maximum height at which workers can operate without fall protection. It signifies the loudest noise level permissible on a construction site. None 22. CHST: Hazard Identification and Control In construction, what is a primary safety concern when working with hydraulic equipment? The potential for hydraulic fluid leaks leading to slip hazards The color differentiation of hydraulic fluid containers The electrical conductivity of hydraulic fluids The weight of hydraulic machinery None 23. CHST: Hazard Identification and Control When implementing noise control measures on a construction site, what is the primary reason for establishing quiet zones? To provide areas where workers can communicate without shouting To create spaces for machinery storage To designate areas for high noise level activities To enhance the aesthetic appeal of the construction site None 24. CHST: Hazard Identification and Control Why is it important to assess the risk of legionella in construction site water systems? Legionella can cause staining on construction materials. Legionella can corrode metal components in water systems. Legionella can lead to Legionnaires' disease, a serious respiratory illness. Legionella affects the pH balance of water, impacting material mixing. None 25. CHST: Hazard Identification and Control What is a critical factor to consider when evaluating the risk of a chemical reaction in a construction site storage area? The compatibility of chemicals stored together The color coding of chemical containers The cost of the chemicals The branding of the chemicals None 26. CHST: Hazard Identification and Control When assessing the risk of vibration exposure, what is the primary health effect that construction workers are protected against? Visual impairment Dermatitis Hand-arm vibration syndrome (HAVS) Hearing loss None 27. CHST: Hazard Identification and Control In the context of construction safety, what is the primary purpose of an air monitoring program? To ensure optimal oxygen levels for combustion engines To detect and quantify airborne contaminants to protect worker health To monitor air temperature for comfort To evaluate the efficiency of HVAC systems None 28. CHST: Hazard Identification and Control What is the primary safety concern when using pressurized containers on a construction site? The potential for the containers to roll away The risk of explosion or rapid release of contents The color fading on the container labels The containers taking up too much space None 29. CHST: Hazard Identification and Control Why is it critical to consider the synergistic effects of multiple chemicals present on a construction site? Because the presence of multiple chemicals can enhance the attractiveness of the site Because the interaction between chemicals can amplify their individual toxic effects Because multiple chemicals can improve the site's air quality Because it helps in inventory management None 30. CHST: Hazard Identification and Control When considering safety measures for working at heights, what is the primary reason for using a fall arrest system over a fall restraint system? To allow more freedom of movement while working at heights To enhance the visual appeal of the safety equipment To reduce the cost of safety equipment To comply with color-coding standards None 31. CHST: Hazard Identification and Control What is the primary safety concern when working with or near overhead power lines at a construction site? The potential for electrocution or electric shock Interference with radio communications The visual obstruction caused by the power lines The impact on the site's aesthetic appearance None 32. CHST: Hazard Identification and Control In the context of construction site safety, what is the purpose of a hot work permit? To ensure that tasks involving heat or sparks are carried out safely To monitor the temperature at the construction site To track the efficiency of workers performing tasks in hot conditions To regulate the use of heating equipment in office trailers None 33. CHST: Hazard Identification and Control Why is it crucial to assess the angle of sunlight during certain construction activities? To maximize the solar power generation on site To prevent direct sunlight from impairing workers' visibility and focus To ensure the site has adequate lighting for Instagram photos To optimize the tanning opportunities for the workers None 34. CHST: Hazard Identification and Control What is the primary hazard associated with incomplete combustion in gas-powered construction equipment? The production of bright, blinding light The release of toxic gases, such as carbon monoxide The increased risk of slipping due to liquid fuel spills The potential for the equipment to change colors None 35. CHST: Hazard Identification and Control When evaluating the risk associated with the use of a new chemical on a construction site, what is the most important document to review? The chemical's price list The chemical's marketing brochure The Safety Data Sheet (SDS) The chemical's performance reviews None 36. CHST: Hazard Identification and Control Which of the following best describes the purpose of a "permit to work" system in a construction environment? To ensure that specific, high-risk tasks are carried out under controlled and monitored conditions To keep a record of all personnel on site for payroll purposes To limit the number of workers on the construction site To track the performance and efficiency of contractors None 37. CHST: Hazard Identification and Control What is the primary reason for conducting a risk assessment before beginning a new construction project? To ensure the project is completed within budget To identify and mitigate potential hazards to worker safety and health To determine the project duration To establish a hierarchy of workers on the site None 38. CHST: Hazard Identification and Control In construction, what is the main safety concern associated with the use of scaffolding? Noise produced by scaffolding structures The visual obstruction caused by scaffolding The potential for falls and structural instability The time required to assemble and disassemble scaffolding None 39. CHST: Hazard Identification and Control Why is it important to consider the "line of fire" during construction activities? To ensure the proper alignment of construction materials To prevent injuries from unexpected releases of energy or materials To optimize the use of firearms for security purposes To align satellite dishes for optimal reception None 40. CHST: Hazard Identification and Control What is the primary safety concern when working with or around heavy equipment on a construction site? Ensuring that the equipment is aesthetically pleasing Minimizing the noise produced by the equipment Preventing accidents involving worker-equipment interaction Keeping the equipment clean and free of debris None 41. CHST: Hazard Identification and Control What is the primary hazard associated with the manual lifting of heavy loads on a construction site? Distraction from the main task Strain on visual acuity Musculoskeletal disorders from overexertion Increased noise levels None 42. CHST: Hazard Identification and Control Why is it important to regularly inspect personal fall arrest systems used on construction sites? To ensure they are visually appealing To verify their compliance with fashion trends To ensure they are free from defects and damage that could compromise safety To confirm they are the correct color None 43. CHST: Hazard Identification and Control In construction, what is the primary purpose of a ground-fault circuit interrupter (GFCI)? To increase the power supply to tools To prevent electrical shock by interrupting a circuit when a ground fault is detected To monitor soil stability To enhance the aesthetic layout of electrical installations None 44. CHST: Hazard Identification and Control What safety measure is crucial when using a ladder on a construction site? Ensuring the ladder is the right color Making sure the ladder is positioned at the correct angle and securely stabilized Using the ladder as a makeshift bridge Decorating the ladder with safety slogans None 45. CHST: Hazard Identification and Control Why is it important to have an effective emergency response plan on a construction site? To ensure that all workers know their roles during an emergency To provide entertainment during break times To comply with decoration guidelines To ensure that emergency drills are conducted in multiple languages None 46. CHST: Hazard Identification and Control What is the primary concern when assessing the risk of asbestos exposure in a construction setting? Ensuring the aesthetic integrity of asbestos-containing materials Determining the color coordination of asbestos with other materials Evaluating the potential for airborne asbestos fibers and the associated health risks Assessing the structural stability of asbestos-containing materials None 47. CHST: Hazard Identification and Control In construction, why is it crucial to identify the load capacity of a surface or structure before starting work? To ensure it can support the weight of materials and equipment without collapse To determine if the surface can withstand paint or other coatings To ascertain how many workers can simultaneously dance on the surface To gauge the surface's resistance to weather conditions None 48. CHST: Hazard Identification and Control What is the primary hazard associated with the accumulation of snow on a construction site? Creating a picturesque winter landscape Increasing the likelihood of slips, trips, and falls Enhancing the acoustics of the site Providing a habitat for wildlife None 49. CHST: Hazard Identification and Control Why is it important to conduct atmospheric testing in confined spaces before entry? To determine if the space has enough oxygen and is free from hazardous gases To ensure the space has an aesthetically pleasing ambiance To check the echo characteristics of the space To prepare the space for decoration and painting None 50. CHST: Hazard Identification and Control What is the purpose of using water barriers in construction zones? To serve as decorative features To reduce dust and airborne contaminants To provide habitats for aquatic species To create challenging obstacles for workers None 51. CHST: Hazard Identification and Control What is the primary reason for ensuring proper illumination on a construction site? To enhance the color vibrancy of the surroundings To improve visibility and reduce the risk of accidents To create a more appealing atmosphere for workers To facilitate nighttime photography of the site None 52. CHST: Hazard Identification and Control In construction, why is it essential to control the level of silica dust? To prevent damage to construction equipment To avoid adverse health effects, such as silicosis, in workers To maintain the aesthetic clarity of the site To ensure the dust does not interfere with paint colors None 53. CHST: Hazard Identification and Control What is the significance of ergonomic tool design in construction? To make the tools look more attractive To reduce the risk of musculoskeletal injuries among workers To ensure the tools match the company's branding To make the tools easier to store None 54. CHST: Hazard Identification and Control Why is it important to consider the "travel path of suspended loads" in construction safety? To ensure the loads follow a visually pleasing trajectory To prevent injuries and property damage by avoiding areas where workers or equipment are present To create a performance art piece with the moving loads To challenge workers' navigation skills None 55. CHST: Hazard Identification and Control What role does "housekeeping" play in construction site safety? To ensure the site is ready for visitors and tours To provide a tidy environment for worker satisfaction To reduce tripping hazards and maintain clear egress routes To prepare the site for end-of-day inspections None 56. CHST: Hazard Identification and Control What is the main safety concern when working near or around mobile cranes on a construction site? Ensuring the crane's color is visible Preventing unauthorized personnel from operating the crane Avoiding the crane's swing radius to prevent being struck or crushed Keeping the crane clean and free of debris None 57. CHST: Hazard Identification and Control Why is it critical to ensure that all workers have access to safety data sheets (SDSs) for chemicals used on a construction site? To provide information on the chemical's market value To ensure workers can identify the chemical by its smell To inform workers about the hazards and safe handling practices for the chemicals To make sure workers know the brand names of the chemicals None 58. CHST: Hazard Identification and Control In construction, what is the primary purpose of implementing a "buddy system" in high-risk areas? To ensure workers have someone to talk to To provide mutual support and monitor each other's safety To facilitate synchronized work routines To ensure uniformity in workers' attire None 59. CHST: Hazard Identification and Control What is the significance of "tag-out" in the lockout/tagout (LOTO) procedure? To indicate that equipment is available for use To provide decorative labels for equipment To signal that machinery is under maintenance and should not be operated To display the operator's name for recognition None 60. CHST: Hazard Identification and Control Why is it essential to monitor weather conditions on a construction site? To plan outdoor activities for workers To ensure the site's decorative elements are weather-appropriate To prepare for and mitigate the impact of adverse weather on safety and operations To synchronize work schedules with sunrise and sunset None 1 out of 60 Time is Up! Time's up
