National Firefighter Selection Inventory Exam Prep
Free practice questions

Free NFSI Practice Questions

10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.

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The NFSI exam has 155 questions and runs 2 hours 30 minutes.

These 10 free NFSI questions are organized by exam domain, so you can see how each part of the National Firefighter Selection Inventory blueprint is tested. Reveal the answer and explanation under each question.

Domain 1: Verbal Comprehension

Question 1

Transfer requests enter the same-day queue only when complete by 3:30 p.m.; complete requests received later enter the next-day queue. A request missing an asset ID or supervisor initials is returned and enters no queue until corrected. A request arrives at 3:22 p.m. without supervisor initials, is returned, and comes back complete at 3:37 p.m. Where should it be placed?

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Correct answer: C - In the next-day queue because it became complete after the cutoff

Domain 2: Verbal Expression

Question 2

An officer is revising an incident summary. Select the grammatically complete sentence that places the opening modifier next to the person who performed the review.

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Correct answer: B - After reviewing the photographs, Lopez revised the damage estimate.

Domain 3: Problem Sensitivity

Question 3

During a vehicle-release review, all technical checks show pass, but the release line contains initials from only one inspector. The release standard requires initials from two different inspectors. What discrepancy should be entered in the audit record?

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Correct answer: C - The required second inspector's initials are not documented

Domain 4: Deductive Reasoning

Question 4

A five-person team must reach an unpaved site with a unit carrying portable lighting. North carries 4 people, has lighting, and is limited to paved sites. South carries 6, has no lighting, and may use either surface. East carries 5, has lighting, and may use either surface. West carries 7, has lighting, and may use either surface. A unit must satisfy all three requirements; if more than one qualifies, select the one with the lowest capacity. Which unit should be assigned?

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Correct answer: D - East

Domain 5: Inductive Reasoning

Question 5

For this evidence review, a detail is corroborated when at least two independent sources report it and none directly contradicts it; it is disputed when one source reports it and an independent source denies it; it is unconfirmed when exactly one source reports it and no source denies it. Alvarez and Brooks independently report that a bay door was closed at 2:10 p.m. Chen, who had no view of the door, says only that he did not see whether it moved. The detail that the door was closed at 2:10 p.m. is:

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Correct answer: B - Corroborated, because two independent reports agree and none denies it

Domain 6: Information Ordering

Question 6

During an equipment-return audit, open the return record first. Assign an identification tag after opening the record, and photograph the item immediately after assigning the tag. Inspect it after the photograph. Because damage is confirmed, attach a damage notice after inspection. Place the item in quarantine only after attaching the notice, and file the record last. Which sequence complies with every requirement?

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Correct answer: A - Open record -> Assign tag -> Photograph -> Inspect -> Attach notice -> Quarantine -> File

Domain 7: Mathematical Reasoning

Question 7

Six recruits must travel together and arrive in less than 25 minutes. North takes 24 minutes, carries 6 people, and costs $18. Central takes 20 minutes, carries 8, and costs $24. South takes 25 minutes, carries 6, and costs $15. East takes 22 minutes, carries 5, and costs $16. If several routes meet both requirements, the least expensive must be chosen. The required route is:

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Correct answer: C - North

Domain 9: Stress Tolerance

Question 8

At 9:10 a.m., your supervisor confirms that an operations summary is the priority and directs you to retrieve its approved status log before writing it. Retrieving the log takes five minutes and is within your role. Two nonurgent supply requests are due at 9:30 and 9:45. What should you do next?

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Correct answer: A - Retrieve the status log, then begin the operations summary

Domain 10: Team Orientation

Question 9

A dispatcher asks you to tell Rivera that the ladder in Bay 2 has been tagged out. The station requires safety-critical messages to be acknowledged with an accurate readback. Rivera continues sorting equipment without acknowledging your message. Which action best confirms that the information was received and understood?

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Correct answer: A - Address Rivera by name, repeat the message, and verify the readback

Domain 11: Motivation/Attitude

Question 10

While organizing blank training forms, an assigned responsibility, you find current and obsolete forms mixed together and slowing staff. Employees are expected to correct low-risk supply problems they discover. They may move blank stock into temporary labeled trays, but destroying forms or permanently changing storage requires approval. What response stays within your authority while addressing the delay?

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Correct answer: D - Separate them into temporary labeled trays and report the change

The rest of the NFSI blueprint

The NFSI exam also covers these domains. Drill them in the full free practice test:

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