IAAI CFI Study Questions With 100% Correct
Verified Answers
Combustible Liquid - A liquid with a flash point ABOVE 100F
12.5 - 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 - 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 - The year of the first edition of NFPA 1033
1.5 times - The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - What temperature in the upper gas layer causes the onset of Flashover?
1960°F - The temperature at which copper melts
2 W/cm2 - The measurement of the radiant heat flux (from gas layer to the floor) that indicates the
onset of flashover
240 volts - 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 - The revision cycle for NFPA 921 (timespan)
350°F - The flash point of power steering fluid
35-70 p.s.i. - 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 - The lower explosive and upper explosive limit of natural gas (methane)?
680°F - The ignition temperature of power steering fluid
Fuel - Any substance that can undergo combustion
Act or Omission - Two factors or situations leading to a fire that may show the nature of the incident
responsibility.
Additional Investigative Recommendations - This concept should not be included in a summary
report of findings.
Admiralty Law - A law that may govern the fire investigation of a boat
After-market Equipment - A type of device in a vehicle, which can cause an electrical overload to
factory installed wiring
Alive and Breathing - 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 - Those who have the responsibility for monitoring safety conditions at the fire
or explosion scene
1220°F - The melting temperature of aluminum
, Aluminum-to-pavement sparks - 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 - A meaningful analysis of a fire requires an understanding of the fire growth, the
total heat released, and WHAT?
Arc-fault circuit interrupter - What does he term AFCI stand for? And, the "A" specifically represents
what?
ASTM - The organization that develops standard methods for testing materials
Auto-ignition - Initiation of combustion by heat but without a spark or flame
Backdraft - A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft - 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 - A boat device that owners fail to keep clean, which is a frequent cause of
engine compartment fires on boats
Ballast - A device on a fluorescent light fixture that transforms the voltage from normal household
voltage to a higher voltage
Battery - The starter motor draws its energy from this source
Verified Answers
Combustible Liquid - A liquid with a flash point ABOVE 100F
12.5 - 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 - 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 - The year of the first edition of NFPA 1033
1.5 times - The recommended distance for securing the perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - What temperature in the upper gas layer causes the onset of Flashover?
1960°F - The temperature at which copper melts
2 W/cm2 - The measurement of the radiant heat flux (from gas layer to the floor) that indicates the
onset of flashover
240 volts - 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 - The revision cycle for NFPA 921 (timespan)
350°F - The flash point of power steering fluid
35-70 p.s.i. - 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 - The lower explosive and upper explosive limit of natural gas (methane)?
680°F - The ignition temperature of power steering fluid
Fuel - Any substance that can undergo combustion
Act or Omission - Two factors or situations leading to a fire that may show the nature of the incident
responsibility.
Additional Investigative Recommendations - This concept should not be included in a summary
report of findings.
Admiralty Law - A law that may govern the fire investigation of a boat
After-market Equipment - A type of device in a vehicle, which can cause an electrical overload to
factory installed wiring
Alive and Breathing - 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 - Those who have the responsibility for monitoring safety conditions at the fire
or explosion scene
1220°F - The melting temperature of aluminum
, Aluminum-to-pavement sparks - 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 - A meaningful analysis of a fire requires an understanding of the fire growth, the
total heat released, and WHAT?
Arc-fault circuit interrupter - What does he term AFCI stand for? And, the "A" specifically represents
what?
ASTM - The organization that develops standard methods for testing materials
Auto-ignition - Initiation of combustion by heat but without a spark or flame
Backdraft - A deflagration resulting from the sudden introduction of air into a confined space
containing oxygen-deficient products of incomplete combustion
Backdraft - 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 - A boat device that owners fail to keep clean, which is a frequent cause of
engine compartment fires on boats
Ballast - A device on a fluorescent light fixture that transforms the voltage from normal household
voltage to a higher voltage
Battery - The starter motor draws its energy from this source
