100+ Free NFSI Practice Questions
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When triaging multiple patients at a mass-casualty incident, which order of patients should generally be treated first? (1) walking patient with a minor cut, (2) patient with no pulse and not breathing after airway repositioning, (3) patient with severe bleeding but conscious, (4) patient with a sprained ankle.
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Key Facts: NFSI Exam
105
Cognitive Ability Items
IO Solutions
8
Cognitive Categories
IO Solutions
155
Total Questions (with 50 behavioral)
IO Solutions
~2.5 hrs
Total Testing Time
IO Solutions
70%
Typical Passing Benchmark
Prep sources / agency-set
12 mo
Typical Score Validity
NFSI study materials
The NFSI is IO Solutions' entry-level firefighter exam. Its cognitive abilities portion has 105 multiple-choice items across eight categories — verbal comprehension, verbal expression, problem sensitivity, deductive reasoning, inductive reasoning, information ordering, mathematical reasoning, and number facility. A separate 50-item behavioral scale brings the total to 155 questions, completed in about 2.5 hours plus 15 minutes for instructions. A 70% benchmark is typical, no calculators are allowed, and scores are generally valid for 12 months.
Sample NFSI Practice Questions
Try these sample questions to test your NFSI exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Read the passage: "All firefighters must complete an annual self-contained breathing apparatus (SCBA) fit test. Any firefighter who fails the fit test is placed on light duty until a properly fitting mask is issued and a re-test is passed." According to the passage, what happens to a firefighter who fails the annual fit test?
2Passage: "Carbon monoxide (CO) is a colorless, odorless gas that is lighter than air at high temperatures but mixes readily with room air. Detectors should be installed on every level of a home, including the basement." Based on the passage, where should CO detectors be installed?
3Passage: "When responding to a structure fire, the first-arriving engine company establishes a water supply and begins an initial attack only after a 360-degree size-up is complete, unless a known life hazard requires immediate action." Under the passage, the first engine company may skip the full 360-degree size-up only when:
4Passage: "A flashover is a near-simultaneous ignition of most combustible materials in an enclosed area. It occurs when the room reaches its ignition temperature and is one of the leading causes of firefighter fatalities." What is the main idea of this passage?
5Passage: "Probationary firefighters are evaluated monthly for the first six months and quarterly thereafter for the remainder of the 12-month probation period." How many quarterly evaluations does a probationary firefighter receive?
6Passage: "Hazardous-materials placards use a four-digit United Nations number to identify the specific substance and a single-digit hazard class to indicate the type of danger." According to the passage, the four-digit number on a placard identifies:
7Passage: "The incident commander (IC) is responsible for overall scene management. The IC may delegate specific tasks to division supervisors but retains ultimate accountability for the incident." Which statement is best supported by the passage?
8Passage: "Smoke detectors should be tested monthly and have their batteries replaced at least once a year, or immediately when a low-battery chirp is heard." Based on the passage, a battery should be replaced immediately when:
9Passage: "Class K fire extinguishers are designed for fires involving cooking oils and fats. They use a wet-chemical agent that cools the fire and forms a barrier to prevent re-ignition." Which fire is a Class K extinguisher designed to handle?
10Passage: "Mutual-aid agreements allow neighboring departments to share resources during large incidents. A requesting department keeps incident command, while the assisting department's crews report to the established command structure." When a department provides mutual aid, its crews:
About the NFSI Exam
The National Firefighter Selection Inventory (NFSI) is the flagship entry-level firefighter examination from Industrial/Organizational Solutions (IO Solutions). The full assessment contains 155 questions: a 105-item cognitive abilities portion and a separate 50-item behavioral orientation (personality) scale, completed in about 2.5 hours plus 15 minutes of instructions. The cognitive portion measures eight job-related abilities — verbal comprehension, verbal expression, problem sensitivity, deductive reasoning, inductive reasoning, information ordering, mathematical reasoning, and number facility — using firefighting-related multiple-choice items. No prior firefighting knowledge is required, and calculators, dictionaries, and electronic devices are not permitted. This practice bank focuses on the cognitive abilities portion, which is the multiple-choice, study-able part of the exam.
Questions
105 scored questions
Time Limit
2.5 hours total, plus 15 minutes for instructions
Passing Score
70% (typical cutoff; agencies may set their own)
Exam Fee
Set by the hiring agency; candidates often pay no exam fee (Industrial/Organizational Solutions (IO Solutions), administered for hiring fire departments)
NFSI Exam Content Outline
Verbal Comprehension
Reading firefighting passages and policies to extract facts, find main ideas, and draw supported conclusions
Verbal Expression
Grammar, spelling, vocabulary, punctuation, and clear sentence construction for report writing
Problem Sensitivity
Recognizing the existence of problems and hazards in firefighting scenarios
Deductive Reasoning
Applying rules, regulations, and stated principles to specific cases for logical conclusions
Inductive Reasoning
Finding a rule or concept that fits observations, including patterns, series, and analogies
Information Ordering
Arranging steps, events, and priorities in the best or most appropriate sequence
Mathematical Reasoning
Quantitative reasoning, choosing formulas, and solving firefighting word problems
Number Facility
Arithmetic with whole numbers, fractions, decimals, ratios, averages, percentages, and square measures
How to Pass the NFSI Exam
What You Need to Know
- Passing score: 70% (typical cutoff; agencies may set their own)
- Exam length: 105 questions
- Time limit: 2.5 hours total, plus 15 minutes for instructions
- Exam fee: Set by the hiring agency; candidates often pay no exam fee
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
NFSI Study Tips from Top Performers
Frequently Asked Questions
What is the NFSI exam?
The National Firefighter Selection Inventory (NFSI) is the flagship entry-level firefighter test from Industrial/Organizational Solutions (IO Solutions). It combines a 105-item cognitive abilities portion with a 50-item behavioral orientation scale for 155 questions total, used by fire departments to screen applicants.
How many questions are on the NFSI and how long is it?
The NFSI has 155 questions: 105 cognitive ability items and 50 behavioral orientation items. The total testing time is about 2.5 hours, plus roughly 15 minutes for instructions. This practice bank focuses on the 105-item cognitive portion.
What does the cognitive portion measure?
The cognitive abilities portion measures eight job-related abilities: verbal comprehension, verbal expression, problem sensitivity, deductive reasoning, inductive reasoning, information ordering, mathematical reasoning, and number facility. No prior firefighting knowledge is required.
What score do I need to pass the NFSI?
A score of about 70% is a commonly cited benchmark, but individual fire departments set their own cutoff scores and use the results to rank candidates on an eligibility list. Always confirm the requirement with the hiring agency.
How much does the NFSI cost?
IO Solutions prices the NFSI to the hiring fire department rather than the candidate, so applicants often pay no exam fee. Any fee, along with retake limits, is determined by the agency administering the test.
Can I use a calculator on the NFSI?
No. Calculators, dictionaries, and electronic devices are not permitted during the NFSI. You must solve the mathematical reasoning and number facility items by hand, so practice mental arithmetic and scratch-paper methods.
Can I retake the NFSI?
Retake rules are set by the hiring agency. Industry sources indicate the NFSI can generally be taken a limited number of times within a six-month window, and scores are typically valid for about 12 months.
Is the behavioral orientation section graded?
The 50-item behavioral orientation scale measures personality traits such as stress tolerance, team orientation, and motivation. It has no right or wrong answers in the usual sense, so this multiple-choice practice bank concentrates on the cognitive abilities portion.