Page |1
IAAI CFI Study Questions (2021)
Questions and Correct Answers/ Latest
Update / Already Graded
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
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, Page |2
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?
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
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, Page |3
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
All rights reserved © 2025/ 2026 |
, Page |4
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
After-market Equipment
Ans: A type of device in a vehicle, which can cause an electrical
overload to factory installed wiring
Alive and Breathing
All rights reserved © 2025/ 2026 |
IAAI CFI Study Questions (2021)
Questions and Correct Answers/ Latest
Update / Already Graded
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
All rights reserved © 2025/ 2026 |
, Page |2
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?
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
All rights reserved © 2025/ 2026 |
, Page |3
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
All rights reserved © 2025/ 2026 |
, Page |4
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
After-market Equipment
Ans: A type of device in a vehicle, which can cause an electrical
overload to factory installed wiring
Alive and Breathing
All rights reserved © 2025/ 2026 |
