IAAI-CFI Exam Preparation 400-
Question Practice Exam Test
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||complete 400 Questions ||IAAI-
CFI LATEST 2026 ||ALREADY
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1. A liquid with a flash point above 100°F is classified as what?
A) Flammable liquid
B) Combustible liquid
C) Volatile liquid
D) Ignitable liquid
Correct Answer: B
Rationale: Flammable liquids have a flash point below 100°F, while
combustible liquids have a flash point at or above 100°F.
2. If the current flowing out from an electrical panel is 12.5 amps,
and it then flows through an electrical load of 1500 watts, what is
the amperage of the remaining current flow of the return circuit?
A) 10 amps
B) 12.5 amps
C) 15 amps
D) 1500 amps
Correct Answer: B
Rationale: In an electrical circuit, the current that flows out from the
panel must return to the panel through the return circuit, so the
amperage remains the same.
3. If a hair dryer draws 8.3 amps (in a home with 120-volt service),
what is the wattage?
,A) 996 watts
B) 1000 watts
C) 1200 watts
D) 8.3 watts
Correct Answer: B (approx. 1000 watts)
Rationale: Power (P) = current (I) x voltage (V). 8.3 amps x 120 volts =
996 watts, which is approximately 1000 watts.
4. The year of the first edition of NFPA 1033 was:
A) 1974
B) 1982
C) 1987
D) 1990
Correct Answer: C
5. The recommended distance for securing the perimeter of a blast
scene (from the furthest debris) is:
A) 1.5 times the distance
B) 2.0 times the distance
C) 2.5 times the distance
D) 3.0 times the distance
Correct Answer: A
6. What temperature in the upper gas layer causes the onset of
Flashover?
A) 1000°F
B) 1100°F
C) 1200°F
D) 1300°F
Correct Answer: B
7. The temperature at which copper melts is:
A) 1760°F
B) 1860°F
C) 1960°F
D) 2060°F
Correct Answer: C
,8. The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover is:
A) 1 W/cm²
B) 2 W/cm²
C) 3 W/cm²
D) 4 W/cm²
Correct Answer: B
9. The voltage between the two hot wires at the service entrance
cables in most single-family residences in the United States (single-
phase service with three wires) is:
A) 110 volts
B) 120 volts
C) 220 volts
D) 240 volts
Correct Answer: D
10. The first step in the scientific method as applied to fire
investigation is to:
A) Develop a hypothesis
B) Test the hypothesis
C) Recognize the need (identify the problem)
D) Collect data
Correct Answer: C
11. Which burn pattern is typically V-shaped and indicates a fire
that traveled upward and outward from its origin?
A) Inverted cone
B) Pool pattern
C) Plume pattern
D) Saddle pattern
Correct Answer: C
12. Evidence of smoke or soot in the lungs, bronchi, and trachea is
one of the most significant factors in confirming that, at the time of
the fire, the victim was:
A) Deceased
B) Alive and Breathing
, C) Unconscious
D) Physically incapacitated
Correct Answer: B
13. Those who have the responsibility for monitoring safety
conditions at the fire or explosion scene:
A) The Lead Investigator
B) The Safety Officer
C) All Team Members
D) The Fire Chief
Correct Answer: C
14. The melting temperature of aluminum is:
A) 1000°F
B) 1120°F
C) 1220°F
D) 1320°F
Correct Answer: C
15. Which one of these is NOT considered a competent ignition
source?
A) Metal-to-metal sparks
B) Aluminum-to-pavement sparks
C) Metal-to-pavement sparks
D) Motor bearing sparks
Correct Answer: B
16. A meaningful analysis of a fire requires an understanding of the
fire growth, the total heat released, and what?
A) The color of the flames
B) The amount of smoke produced
C) Heat Release Rate
D) The duration of the fire
Correct Answer: C
17. What does the term AFCI stand for?
A) Arc-fault circuit interrupter
B) Arc-fault current interrupter
C) Alternating current fault interrupter
Question Practice Exam Test
Bank With Verified Answers
||complete 400 Questions ||IAAI-
CFI LATEST 2026 ||ALREADY
GRADED A+
1. A liquid with a flash point above 100°F is classified as what?
A) Flammable liquid
B) Combustible liquid
C) Volatile liquid
D) Ignitable liquid
Correct Answer: B
Rationale: Flammable liquids have a flash point below 100°F, while
combustible liquids have a flash point at or above 100°F.
2. If the current flowing out from an electrical panel is 12.5 amps,
and it then flows through an electrical load of 1500 watts, what is
the amperage of the remaining current flow of the return circuit?
A) 10 amps
B) 12.5 amps
C) 15 amps
D) 1500 amps
Correct Answer: B
Rationale: In an electrical circuit, the current that flows out from the
panel must return to the panel through the return circuit, so the
amperage remains the same.
3. If a hair dryer draws 8.3 amps (in a home with 120-volt service),
what is the wattage?
,A) 996 watts
B) 1000 watts
C) 1200 watts
D) 8.3 watts
Correct Answer: B (approx. 1000 watts)
Rationale: Power (P) = current (I) x voltage (V). 8.3 amps x 120 volts =
996 watts, which is approximately 1000 watts.
4. The year of the first edition of NFPA 1033 was:
A) 1974
B) 1982
C) 1987
D) 1990
Correct Answer: C
5. The recommended distance for securing the perimeter of a blast
scene (from the furthest debris) is:
A) 1.5 times the distance
B) 2.0 times the distance
C) 2.5 times the distance
D) 3.0 times the distance
Correct Answer: A
6. What temperature in the upper gas layer causes the onset of
Flashover?
A) 1000°F
B) 1100°F
C) 1200°F
D) 1300°F
Correct Answer: B
7. The temperature at which copper melts is:
A) 1760°F
B) 1860°F
C) 1960°F
D) 2060°F
Correct Answer: C
,8. The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover is:
A) 1 W/cm²
B) 2 W/cm²
C) 3 W/cm²
D) 4 W/cm²
Correct Answer: B
9. The voltage between the two hot wires at the service entrance
cables in most single-family residences in the United States (single-
phase service with three wires) is:
A) 110 volts
B) 120 volts
C) 220 volts
D) 240 volts
Correct Answer: D
10. The first step in the scientific method as applied to fire
investigation is to:
A) Develop a hypothesis
B) Test the hypothesis
C) Recognize the need (identify the problem)
D) Collect data
Correct Answer: C
11. Which burn pattern is typically V-shaped and indicates a fire
that traveled upward and outward from its origin?
A) Inverted cone
B) Pool pattern
C) Plume pattern
D) Saddle pattern
Correct Answer: C
12. Evidence of smoke or soot in the lungs, bronchi, and trachea is
one of the most significant factors in confirming that, at the time of
the fire, the victim was:
A) Deceased
B) Alive and Breathing
, C) Unconscious
D) Physically incapacitated
Correct Answer: B
13. Those who have the responsibility for monitoring safety
conditions at the fire or explosion scene:
A) The Lead Investigator
B) The Safety Officer
C) All Team Members
D) The Fire Chief
Correct Answer: C
14. The melting temperature of aluminum is:
A) 1000°F
B) 1120°F
C) 1220°F
D) 1320°F
Correct Answer: C
15. Which one of these is NOT considered a competent ignition
source?
A) Metal-to-metal sparks
B) Aluminum-to-pavement sparks
C) Metal-to-pavement sparks
D) Motor bearing sparks
Correct Answer: B
16. A meaningful analysis of a fire requires an understanding of the
fire growth, the total heat released, and what?
A) The color of the flames
B) The amount of smoke produced
C) Heat Release Rate
D) The duration of the fire
Correct Answer: C
17. What does the term AFCI stand for?
A) Arc-fault circuit interrupter
B) Arc-fault current interrupter
C) Alternating current fault interrupter
