IAAI CFI Study Questions & Detailed Correct
Answers Provided
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
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?
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
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
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?
Arc-fault circuit interrupter - Answer What does he term AFCI stand for? And, the "A" specifically
represents what?
ASTM - Answer The organization that develops standard methods for testing materials
Auto-ignition - Answer Initiation of combustion by heat but without a spark or flame
Backdraft - Answer A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft - Answer An explosion caused by a combination of combustible materials heated to the
ignition point and a sudden introduction of oxygen to support combustion
Backfire Flame Arrestor - Answer A boat device that owners fail to keep clean, which is a frequent cause
of engine compartment fires on boats
Ballast - Answer A device on a fluorescent light fixture that transforms the voltage from normal
household voltage to a higher voltage
Battery - Answer The starter motor draws its energy from this source
Answers Provided
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
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?
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
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
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?
Arc-fault circuit interrupter - Answer What does he term AFCI stand for? And, the "A" specifically
represents what?
ASTM - Answer The organization that develops standard methods for testing materials
Auto-ignition - Answer Initiation of combustion by heat but without a spark or flame
Backdraft - Answer A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft - Answer An explosion caused by a combination of combustible materials heated to the
ignition point and a sudden introduction of oxygen to support combustion
Backfire Flame Arrestor - Answer A boat device that owners fail to keep clean, which is a frequent cause
of engine compartment fires on boats
Ballast - Answer A device on a fluorescent light fixture that transforms the voltage from normal
household voltage to a higher voltage
Battery - Answer The starter motor draws its energy from this source
