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Your FREE Firefighter Entrance Exam (NFSI) Practice Test 2026 – 340+ Q&A

Realistic NFSI questions across the cognitive and behavioral sections — weighted like the real firefighter exam, with instant scoring and answer explanations.

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The firefighter exam most departments use is the National Firefighter Selection Inventory (NFSI), built by Industrial/Organizational Solutions (IO Solutions) to screen entry-level firefighter applicants. It is one of the first hurdles on the path to the academy. This free practice test mirrors the NFSI’s cognitive section, so sharpening it here means you are ready for the real thing.[1]

Click Start Test above to run a complete firefighter exam simulation, take one section, or drill a single skill. The hub groups everything under the exam’s two sections so your practice matches how the real test is built.

The NFSI combines a Cognitive Ability measure (105 multiple-choice questions) with a Behavioral Orientation measure (50 items) in one sitting — 155 items total — and the two combine into one overall score.[1]

Every question is tagged to its section and includes a clear explanation, so you learn the reasoning behind each answer. To round out your prep, pair these with our free study guide, flashcards.[1]

Firefighter Exam at a Glance

The key thing to understand about the NFSI is that it pairs a studyable cognitive section with a behavioral questionnaire, and the two combine into a single score. The table below lays out both sections, their item counts and time, and how the result is used.

Firefighter Exam (NFSI) at a glance
DetailFirefighter Exam (NFSI)
Test ProviderIndustrial/Organizational Solutions (IO Solutions)
Section 1 — Cognitive Ability105 multiple-choice questions (verbal, reasoning, math)
Section 2 — Behavioral Orientation50 items on a 5-point agreement scale (personality-style)
Total Items155 (105 cognitive + 50 behavioral)
Total Testing TimeAbout 2.5 hours (≈150 minutes), plus ~15 minutes for instructions
ScoringCognitive + behavioral combine into one overall NFSI score
Passing ScorePass/fail at the hiring agency's cutoff (commonly ~70%); passers often ranked by score
FormatComputer- or paper-based, depending on the hiring agency
EligibilityEntry-level; no prior firefighting experience required

The firefighter exam (NFSI) has two parts in one sitting — a Cognitive Ability measure (105 multiple-choice questions) and a Behavioral Orientation measure (50 items) — for 155 items in about 2.5 hours, combined into one overall score against the hiring agency's cutoff.

Note: the NFSI’s 150-minute total time is for one combined sitting; the per-section minutes shown in the practice hub split that single clock proportionally as a pacing guide.[1]

The Two NFSI Sections and How They’re Weighted

The NFSI is built from two measures. The Cognitive Ability section — the part you can directly study for — covers verbal comprehension and expression, problem sensitivity, deductive and inductive reasoning, information ordering, and mathematical reasoning. The Behavioral Orientation section gauges traits like stress tolerance, teamwork, and motivation.[1]

Our complete practice exam runs both sections, weighted to the real item counts. Here is how the 155 items break down:

NFSI — 155 items across two sections
Cognitive Ability68% · 105 multiple-choice Qs
Behavioral Orientation32% · 50 agreement-scale items

The bars above show each section’s share of the 155 items (with its count). The Cognitive Ability measure is by far the larger part and the one practice can most improve, so that is where most of your study time should go.

Firefighter exam (NFSI) practice test — questions by section with answer explanations

Practice Questions by Section

Use Start Test for the complete weighted firefighter exam simulation, run a single section, or open the hub and drill one skill. After each section you get a breakdown so you know exactly where to focus.

Most candidates need the most reps on the Cognitive Ability section — verbal reasoning, reading, and math under time pressure — since the behavioral questionnaire is answered honestly rather than studied.

Who Takes the Firefighter Exam?

The NFSI is an entry-level screening test, so no prior firefighting experience is required to take it. It measures the cognitive abilities and behavioral traits linked to success as a firefighter.[1]

Beyond the test, each hiring department sets its own applicant requirements — things like a minimum age, a high school diploma or equivalent, a valid driver’s license, and physical-ability testing such as the CPAT later in the process.

Confirm your specific department’s eligibility requirements before you apply, since they vary by agency and jurisdiction.[2]

How Do You Register for the Firefighter Exam?

Registration for the NFSI runs through the hiring fire department or IO Solutions, its testing partner, rather than one national portal. You typically apply to a specific department, and the NFSI is administered as part of that department’s selection process.[2]

Some departments cover the test fee; others ask candidates to pay at the testing site. Check the department’s careers page for test dates, location, fee, and what to bring, because these details are set locally and change periodically.[1]

How Is the Firefighter Exam Scored?

The NFSI combines the cognitive and behavioral measures into one overall score. It is pass/fail against the hiring agency’s cutoff — commonly around a 70% benchmark — and many departments then rank passing candidates by score.[1]

Because higher overall scores are linked to stronger on-the-job performance, scoring well does more than pass — it can move you up the eligibility list.

Since the cutoff and how the score is used vary by department, the reliable strategy is to maximize your cognitive score in timed practice and answer the behavioral items honestly and consistently.

How Hard Is the Firefighter Exam?

The NFSI’s difficulty comes mainly from the breadth and pace of the cognitive section — reading, verbal reasoning, and math under time pressure — rather than from advanced content.

The behavioral section is not something you study for in the usual sense; you answer consistently and honestly about how you work. That means nearly all of your preparation payoff comes from drilling the cognitive measure.[1]

155
Items
105 cognitive + 50 behavioral
~2.5 hr
Testing time
one combined sitting
~70%
Typical cutoff
set by the hiring agency

The takeaway: drill the cognitive section under time until you are scoring comfortably above the cutoff, and answer the behavioral items honestly.

What to Expect on Test Day

The NFSI is delivered in one combined sitting of about 2.5 hours: the Cognitive Ability measure of 105 multiple-choice questions, plus the Behavioral Orientation measure of 50 agreement-scale items.[1]

The cognitive questions are based only on the information given — no outside firefighting knowledge is required — while the behavioral items ask how strongly you agree with statements about how you work. Expect about 15 minutes of instructions before testing begins.

Bring a valid, unexpired government-issued photo ID that matches your application, and arrive early to check in. Rehearsing the cognitive section under time with full practice tests makes the pacing feel routine on test day.

How to Use This Firefighter Exam Practice Test

  • Focus on the cognitive section. That is the part practice improves most — bank the bulk of your reps there.
  • Diagnose, then drill. Take the complete simulation to find weak skills, then drill them one at a time.
  • Beat the clock. Verbal reasoning and math come under time pressure — practice working accurately at pace.
  • Answer behavioral items honestly. There is no “right” answer — respond consistently about how you actually work.
  • Learn the why. Read every explanation so you understand the reasoning, not just the answer.

Why Take the Firefighter Exam?

The NFSI is the gateway written test for an entry-level firefighter career — passing it, and scoring well, is often the first step toward the academy and a place on the eligibility list.[1] This free firefighter exam practice test is the most efficient way to get ready for the cognitive section.

Conclusion

Passing the firefighter exam comes down to a strong cognitive score and honest behavioral responses, combined into one overall result. Use this free NFSI practice test to find your weakest cognitive skills, drill them to mastery under time, and reinforce them with our study guide, flashcards so you walk in confident on test day.

Firefighter Exam Practice Test FAQ

The National Firefighter Selection Inventory, or NFSI, is built by Industrial/Organizational Solutions (IO Solutions). Many fire departments use it as their entry-level written test to screen firefighter applicants, so passing it is often an early step in the hiring process.

References

  1. 1.Industrial/Organizational Solutions (IO Solutions). “National Firefighter Selection Inventory (NFSI).” IOSolutions.com, 2026.
  2. 2.Industrial/Organizational Solutions (IO Solutions). “Firefighter Test — Entry-Level Written Exam.” IOSolutions.com.
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