IAAI-CFI Study Guide Questions with Correct
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
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
