IAAI CFI STUDY QUESTIONS
WITH CORRECT ANSWERS
Act or Omission - ANSWER --Two factors or situations leading to a fire that may show the
nature of the incident responsibility.
Additional Investigative Recommendations - ANSWER --This concept should not be
included in a summary report of findings.
Admiralty Law - ANSWER --A law that may govern the fire investigation of a boat
After-market Equipment - ANSWER --A type of device in a vehicle, which can cause an
electrical overload to factory installed wiring
Alive and Breathing - ANSWER --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 - ANSWER --Those who have the responsibility for monitoring safety
conditions at the fire or explosion scene
1987 - ANSWER --The year of the first edition of NFPA 1033
,1.5 times - ANSWER --The recommended distance for securing the perimeter of a blast
scene
*That is, the distance from the furthest debris
1100°F - ANSWER --What temperature in the upper gas layer causes the onset of
Flashover?
Combustible Liquid - ANSWER --A liquid with a flash point ABOVE 100F
12.5 - ANSWER --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 - ANSWER --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
1960°F - ANSWER --The temperature at which copper melts
2 W/cm2 - ANSWER --The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover
240 volts - ANSWER --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 - ANSWER --The revision cycle for NFPA 921 (timespan)
350°F - ANSWER --The flash point of power steering fluid
35-70 p.s.i. - ANSWER --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 - ANSWER --The lower explosive and upper explosive limit of natural gas
(methane)?
680°F - ANSWER --The ignition temperature of power steering fluid
Fuel - ANSWER --Any substance that can undergo combustion
1220°F - ANSWER --The melting temperature of aluminum
Aluminum-to-pavement sparks - ANSWER --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 - ANSWER --A meaningful analysis of a fire requires an understanding
of the fire growth, the total heat released, and WHAT?
WITH CORRECT ANSWERS
Act or Omission - ANSWER --Two factors or situations leading to a fire that may show the
nature of the incident responsibility.
Additional Investigative Recommendations - ANSWER --This concept should not be
included in a summary report of findings.
Admiralty Law - ANSWER --A law that may govern the fire investigation of a boat
After-market Equipment - ANSWER --A type of device in a vehicle, which can cause an
electrical overload to factory installed wiring
Alive and Breathing - ANSWER --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 - ANSWER --Those who have the responsibility for monitoring safety
conditions at the fire or explosion scene
1987 - ANSWER --The year of the first edition of NFPA 1033
,1.5 times - ANSWER --The recommended distance for securing the perimeter of a blast
scene
*That is, the distance from the furthest debris
1100°F - ANSWER --What temperature in the upper gas layer causes the onset of
Flashover?
Combustible Liquid - ANSWER --A liquid with a flash point ABOVE 100F
12.5 - ANSWER --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 - ANSWER --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
1960°F - ANSWER --The temperature at which copper melts
2 W/cm2 - ANSWER --The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover
240 volts - ANSWER --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 - ANSWER --The revision cycle for NFPA 921 (timespan)
350°F - ANSWER --The flash point of power steering fluid
35-70 p.s.i. - ANSWER --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 - ANSWER --The lower explosive and upper explosive limit of natural gas
(methane)?
680°F - ANSWER --The ignition temperature of power steering fluid
Fuel - ANSWER --Any substance that can undergo combustion
1220°F - ANSWER --The melting temperature of aluminum
Aluminum-to-pavement sparks - ANSWER --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 - ANSWER --A meaningful analysis of a fire requires an understanding
of the fire growth, the total heat released, and WHAT?
