IAAI CFI COMPREHENSIVE EXAM
QUESTIONS AND CORRECT ANSWERS
STUDY GUIDE
●● 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?
Answer: 12.5
●● 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
Answer: 1000
●● The year of the first edition of NFPA 1033
Answer: 1987
●● A liquid with a flash point ABOVE 100F
Answer: Combustible Liquid
,●● The recommended distance for securing the perimeter of a blast
scene
*That is, the distance from the furthest debris
Answer: 1.5 times
●● What temperature in the upper gas layer causes the onset of
Flashover?
Answer: 1100°F
●● The temperature at which copper melts
Answer: 1960°F
●● The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover
Answer: 2 W/cm2
●● 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)
Answer: 240 volts
●● The revision cycle for NFPA 921 (timespan)
,Answer: 3 years
●● The flash point of power steering fluid
Answer: 350°F
●● In high-pressure fuel-injected vehicles, this is the typical range of
pressure that is used to pump fuel from a fuel tank
Answer: 35-70 p.s.i.
●● The lower explosive and upper explosive limit of natural gas
(methane)?
Answer: 5 and 17
●● The ignition temperature of power steering fluid
Answer: 680°F
●● Any substance that can undergo combustion
Answer: Fuel
●● Two factors or situations leading to a fire that may show the nature
of the incident responsibility.
Answer: Act or Omission
, ●● This concept should not be included in a summary report of findings.
Answer: Additional Investigative Recommendations
●● A law that may govern the fire investigation of a boat
Answer: Admiralty Law
●● A type of device in a vehicle, which can cause an electrical overload
to factory installed wiring
Answer: After-market Equipment
●● 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?
Answer: Alive and Breathing
●● Those who have the responsibility for monitoring safety conditions
at the fire or explosion scene
Answer: All Team Members
●● The melting temperature of aluminum
Answer: 1220°F
●● Which one of these is NOT considered a competent ignition source?
QUESTIONS AND CORRECT ANSWERS
STUDY GUIDE
●● 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?
Answer: 12.5
●● 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
Answer: 1000
●● The year of the first edition of NFPA 1033
Answer: 1987
●● A liquid with a flash point ABOVE 100F
Answer: Combustible Liquid
,●● The recommended distance for securing the perimeter of a blast
scene
*That is, the distance from the furthest debris
Answer: 1.5 times
●● What temperature in the upper gas layer causes the onset of
Flashover?
Answer: 1100°F
●● The temperature at which copper melts
Answer: 1960°F
●● The measurement of the radiant heat flux (from gas layer to the
floor) that indicates the onset of flashover
Answer: 2 W/cm2
●● 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)
Answer: 240 volts
●● The revision cycle for NFPA 921 (timespan)
,Answer: 3 years
●● The flash point of power steering fluid
Answer: 350°F
●● In high-pressure fuel-injected vehicles, this is the typical range of
pressure that is used to pump fuel from a fuel tank
Answer: 35-70 p.s.i.
●● The lower explosive and upper explosive limit of natural gas
(methane)?
Answer: 5 and 17
●● The ignition temperature of power steering fluid
Answer: 680°F
●● Any substance that can undergo combustion
Answer: Fuel
●● Two factors or situations leading to a fire that may show the nature
of the incident responsibility.
Answer: Act or Omission
, ●● This concept should not be included in a summary report of findings.
Answer: Additional Investigative Recommendations
●● A law that may govern the fire investigation of a boat
Answer: Admiralty Law
●● A type of device in a vehicle, which can cause an electrical overload
to factory installed wiring
Answer: After-market Equipment
●● 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?
Answer: Alive and Breathing
●● Those who have the responsibility for monitoring safety conditions
at the fire or explosion scene
Answer: All Team Members
●● The melting temperature of aluminum
Answer: 1220°F
●● Which one of these is NOT considered a competent ignition source?
