IAAI CFI Study Questions and Answers
(2026/2027)
A liquid with a flash point ABOVE 100F - Answer-Combustible Liquid
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If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of
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1500 watts, what is the amperage of the remaining current flow of the return circuit? - Answer-12.5
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If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage?
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*Power (P) = current (I) x voltage (V)
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Watts = amps x volts - Answer-1000
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The year of the first edition of NFPA 1033 - Answer-1987
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The recommended distance for securing the perimeter of a blast scene
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*That is, the distance from the furthest debris - Answer-1.5 times
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What temperature in the upper gas layer causes the onset of Flashover? - Answer-1100°F
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The temperature at which copper melts - Answer-1960°F
n n n n n n n
The measurement of the radiant heat flux (from gas layer to the floor) that indicates the onset of flashover -
n n n n n n n n n n n n n n n n n n n
Answer-2 W/cm2
n n
,The voltage between the two hot wires at the service entrance cables in most single-family residences in the
n n n n n n n n n n n n n n n n n
United States (single-phase service with three wires) - Answer-240 volts
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The revision cycle for NFPA 921 (timespan) - Answer-3 years
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The flash point of power steering fluid - Answer-350°F
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In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used to pump fuel from a
n n n n n n n n n n n n n n n n n n
fuel tank - Answer-35-70 p.s.i.
n n n n n
The lower explosive and upper explosive limit of natural gas (methane)? - Answer-5 and 17
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The ignition temperature of power steering fluid - Answer-680°F
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Any substance that can undergo combustion - Answer-Fuel
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Two factors or situations leading to a fire that may show the nature of the incident responsibility. - Answer-
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Act or Omission
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This concept should not be included in a summary report of findings. - Answer-Additional Investigative
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Recommendations
n
A law that may govern the fire investigation of a boat - Answer-Admiralty Law
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A type of device in a vehicle, which can cause an electrical overload to factory installed wiring - Answer-
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After-market Equipment n
, Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most significant factors in
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confirming that, at the time of the fire, the victim was WHAT? - Answer-Alive and Breathing
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Those who have the responsibility for monitoring safety conditions at the fire or explosion scene - Answer-
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All Team Members
n n
The melting temperature of aluminum - Answer-1220°F
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Which one of these is NOT considered a competent ignition source?
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Metal-to-metal sparks, n
Aluminum-to-pavement sparks, n
Metal-to-pavement sparks, n
Motor bearing sparks - Answer-Aluminum-to-pavement sparks
n n n n n
A meaningful analysis of a fire requires an understanding of the fire growth, the total heat released, and
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WHAT? - Answer-Heat Release Rate
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What does he term AFCI stand for? And, the "A" specifically represents what? - Answer-Arc-fault circuit
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interrupter
n
The organization that develops standard methods for testing materials - Answer-ASTM
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Initiation of combustion by heat but without a spark or flame - Answer-Auto-ignition
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A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-
n n n n n n n n n n n n n n
deficient products of incomplete combustion - Answer-Backdraft
n n n n n n
(2026/2027)
A liquid with a flash point ABOVE 100F - Answer-Combustible Liquid
n n n n n n n n n n
If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of
n n n n n n n n n n n n n n n n n n n n
1500 watts, what is the amperage of the remaining current flow of the return circuit? - Answer-12.5
n n n n n n n n n n n n n n n n n
If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage?
n n n n n n n n n n n n n n n
*Power (P) = current (I) x voltage (V)
n n n n n n n
Watts = amps x volts - Answer-1000
n n n n n n
The year of the first edition of NFPA 1033 - Answer-1987
n n n n n n n n n n
The recommended distance for securing the perimeter of a blast scene
n n n n n n n n n n
*That is, the distance from the furthest debris - Answer-1.5 times
n n n n n n n n n n
What temperature in the upper gas layer causes the onset of Flashover? - Answer-1100°F
n n n n n n n n n n n n n
The temperature at which copper melts - Answer-1960°F
n n n n n n n
The measurement of the radiant heat flux (from gas layer to the floor) that indicates the onset of flashover -
n n n n n n n n n n n n n n n n n n n
Answer-2 W/cm2
n n
,The voltage between the two hot wires at the service entrance cables in most single-family residences in the
n n n n n n n n n n n n n n n n n
United States (single-phase service with three wires) - Answer-240 volts
n n n n n n n n n n
The revision cycle for NFPA 921 (timespan) - Answer-3 years
n n n n n n n n n
The flash point of power steering fluid - Answer-350°F
n n n n n n n n
In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used to pump fuel from a
n n n n n n n n n n n n n n n n n n
fuel tank - Answer-35-70 p.s.i.
n n n n n
The lower explosive and upper explosive limit of natural gas (methane)? - Answer-5 and 17
n n n n n n n n n n n n n n
The ignition temperature of power steering fluid - Answer-680°F
n n n n n n n n
Any substance that can undergo combustion - Answer-Fuel
n n n n n n n
Two factors or situations leading to a fire that may show the nature of the incident responsibility. - Answer-
n n n n n n n n n n n n n n n n n n
Act or Omission
n n
This concept should not be included in a summary report of findings. - Answer-Additional Investigative
n n n n n n n n n n n n n n
Recommendations
n
A law that may govern the fire investigation of a boat - Answer-Admiralty Law
n n n n n n n n n n n n n
A type of device in a vehicle, which can cause an electrical overload to factory installed wiring - Answer-
n n n n n n n n n n n n n n n n n n
After-market Equipment n
, Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most significant factors in
n n n n n n n n n n n n n n n n n n
confirming that, at the time of the fire, the victim was WHAT? - Answer-Alive and Breathing
n n n n n n n n n n n n n n n n
Those who have the responsibility for monitoring safety conditions at the fire or explosion scene - Answer-
n n n n n n n n n n n n n n n n
All Team Members
n n
The melting temperature of aluminum - Answer-1220°F
n n n n n n
Which one of these is NOT considered a competent ignition source?
n n n n n n n n n n n
Metal-to-metal sparks, n
Aluminum-to-pavement sparks, n
Metal-to-pavement sparks, n
Motor bearing sparks - Answer-Aluminum-to-pavement sparks
n n n n n
A meaningful analysis of a fire requires an understanding of the fire growth, the total heat released, and
n n n n n n n n n n n n n n n n n
WHAT? - Answer-Heat Release Rate
n n n n n
What does he term AFCI stand for? And, the "A" specifically represents what? - Answer-Arc-fault circuit
n n n n n n n n n n n n n n n
interrupter
n
The organization that develops standard methods for testing materials - Answer-ASTM
n n n n n n n n n n
Initiation of combustion by heat but without a spark or flame - Answer-Auto-ignition
n n n n n n n n n n n n
A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-
n n n n n n n n n n n n n n
deficient products of incomplete combustion - Answer-Backdraft
n n n n n n
