IAAI CFI STUDY EXAM QUESTIONS
WITH VERIFIED ANSWERS.
Combustible Liquid - ANS A liquid with a flash point ABOVE 100F
12.5 - ANS 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?
1000 - ANS If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the
wattage?
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987 - ANS The year of the first edition of NFPA 1033
1.5 times - ANS The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - ANS What temperature in the upper gas layer causes the onset of Flashover?
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,1960°F - ANS The temperature at which copper melts
2 W/cm2 - ANS The measurement of the radiant heat flux (from gas layer to the floor) that
indicates the onset of flashover
240 volts - ANS 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)
3 years - ANS The revision cycle for NFPA 921 (timespan)
350°F - ANS The flash point of power steering fluid
35-70 p.s.i. - ANS In high-pressure fuel-injected vehicles, this is the typical range of pressure
that is used to pump fuel from a fuel tank
5 and 17 - ANS The lower explosive and upper explosive limit of natural gas (methane)?
680°F - ANS The ignition temperature of power steering fluid
Fuel - ANS Any substance that can undergo combustion
Act or Omission - ANS Two factors or situations leading to a fire that may show the nature of
the incident responsibility.
Additional Investigative Recommendations - ANS This concept should not be included in a
summary report of findings.
Admiralty Law - ANS A law that may govern the fire investigation of a boat
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, After-market Equipment - ANS A type of device in a vehicle, which can cause an electrical
overload to factory installed wiring
Alive and Breathing - ANS 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 WHAT?
All Team Members - ANS Those who have the responsibility for monitoring safety conditions
at the fire or explosion scene
1220°F - ANS The melting temperature of aluminum
Aluminum-to-pavement sparks - ANS Which one of these is NOT considered a competent
ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
Heat Release Rate - ANS A meaningful analysis of a fire requires an understanding of the fire
growth, the total heat released, and WHAT?
Arc-fault circuit interrupter - ANS What does he term AFCI stand for? And, the "A"
specifically represents what?
ASTM - ANS The organization that develops standard methods for testing materials
Auto-ignition - ANS Initiation of combustion by heat but without a spark or flame
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
WITH VERIFIED ANSWERS.
Combustible Liquid - ANS A liquid with a flash point ABOVE 100F
12.5 - ANS 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?
1000 - ANS If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the
wattage?
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987 - ANS The year of the first edition of NFPA 1033
1.5 times - ANS The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - ANS What temperature in the upper gas layer causes the onset of Flashover?
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,1960°F - ANS The temperature at which copper melts
2 W/cm2 - ANS The measurement of the radiant heat flux (from gas layer to the floor) that
indicates the onset of flashover
240 volts - ANS 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)
3 years - ANS The revision cycle for NFPA 921 (timespan)
350°F - ANS The flash point of power steering fluid
35-70 p.s.i. - ANS In high-pressure fuel-injected vehicles, this is the typical range of pressure
that is used to pump fuel from a fuel tank
5 and 17 - ANS The lower explosive and upper explosive limit of natural gas (methane)?
680°F - ANS The ignition temperature of power steering fluid
Fuel - ANS Any substance that can undergo combustion
Act or Omission - ANS Two factors or situations leading to a fire that may show the nature of
the incident responsibility.
Additional Investigative Recommendations - ANS This concept should not be included in a
summary report of findings.
Admiralty Law - ANS A law that may govern the fire investigation of a boat
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, After-market Equipment - ANS A type of device in a vehicle, which can cause an electrical
overload to factory installed wiring
Alive and Breathing - ANS 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 WHAT?
All Team Members - ANS Those who have the responsibility for monitoring safety conditions
at the fire or explosion scene
1220°F - ANS The melting temperature of aluminum
Aluminum-to-pavement sparks - ANS Which one of these is NOT considered a competent
ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
Heat Release Rate - ANS A meaningful analysis of a fire requires an understanding of the fire
growth, the total heat released, and WHAT?
Arc-fault circuit interrupter - ANS What does he term AFCI stand for? And, the "A"
specifically represents what?
ASTM - ANS The organization that develops standard methods for testing materials
Auto-ignition - ANS Initiation of combustion by heat but without a spark or flame
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
