IAAI CFI Exam Bank Study Questions 2025 |
Certified Fire Investigator | NFPA 921 & 1033 |
LATEST/IAAI CFI Exam Bank Study Questions
2025.
Combustible Liquid
A liquid with a flash point ABOVE 100F
Current Flow
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?
Power (P)
Power (P) = current (I) x voltage (V)
Watts
Watts = amps x volts
Year of NFPA 1033 First Edition
1987
Recommended Distance for Securing Blast Scene
1.5 times the distance from the furthest debris
Onset of Flashover Temperature
1100°F
Copper Melting Temperature
1960°F
Radiant Heat Flux Measurement
2 W/cm2 indicates the onset of flashover
Voltage at Service Entrance Cables
,240 volts between the two hot wires in most single-family residences in the United States
NFPA 921 Revision Cycle
3 years
Flash Point of Power Steering Fluid
350°F
Typical Pressure in High-Pressure Fuel-Injected Vehicles
35-70 p.s.i.
Lower and Upper Explosive Limit of Natural Gas
5 and 17
Ignition Temperature of Power Steering Fluid
680°F
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.
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 alive.
All Team Members
Those who have the responsibility for monitoring safety conditions at the fire or explosion scene
Melting Temperature of Aluminum
1220°F
,Aluminum-to-pavement sparks
Considered a competent ignition source.
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 the 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.
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.
Beyond a Reasonable Doubt
The burden of proof in a criminal trial.
Bimetallic Thermostats
The component that controls temperature in many heat-producing appliances.
BLEVE
, This may occur when the vapor pressure of a liquid exceeds atmospheric pressure.
Boiling Point
The temperature or point at which the vapor pressure of a liquid equals the external pressure
applied.
Bonding
The process of electrically connecting two or more conductive objects.
Bottom Passenger Side of the Windshield
Most engine fires typically penetrate the interior compartment at this location of the vehicle.
Brass Prongs (male ends)
An investigator can closely examine this component of a cord to determine if it was plugged into
a receptacle.
Calcination
The chemical and physical changes that occur in gypsum wallboard surfaces during a fire.
Carbon Monoxide
A narcotic gas that one might be exposed to in the fire.
Carbon Monoxide Poisoning
This toxic condition does NOT cause a cherry-pink coloration to the skin of the fire victim and is
NOT visible on all skin types.
Carburetor Backfire
This occurrence is the most common open-flame ignition source in non-fuel injected vehicles.
Ceiling jet
When the fire plume reaches the ceiling of a room and moves laterally along the ceiling.
Christmas Tree
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter than a pool of
gasoline or a polyurethane chair.
Clean Burn
This occurs when intense radiated heat or direct flame contacts a surface during the fire,
burning away deposits.
Certified Fire Investigator | NFPA 921 & 1033 |
LATEST/IAAI CFI Exam Bank Study Questions
2025.
Combustible Liquid
A liquid with a flash point ABOVE 100F
Current Flow
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?
Power (P)
Power (P) = current (I) x voltage (V)
Watts
Watts = amps x volts
Year of NFPA 1033 First Edition
1987
Recommended Distance for Securing Blast Scene
1.5 times the distance from the furthest debris
Onset of Flashover Temperature
1100°F
Copper Melting Temperature
1960°F
Radiant Heat Flux Measurement
2 W/cm2 indicates the onset of flashover
Voltage at Service Entrance Cables
,240 volts between the two hot wires in most single-family residences in the United States
NFPA 921 Revision Cycle
3 years
Flash Point of Power Steering Fluid
350°F
Typical Pressure in High-Pressure Fuel-Injected Vehicles
35-70 p.s.i.
Lower and Upper Explosive Limit of Natural Gas
5 and 17
Ignition Temperature of Power Steering Fluid
680°F
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.
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 alive.
All Team Members
Those who have the responsibility for monitoring safety conditions at the fire or explosion scene
Melting Temperature of Aluminum
1220°F
,Aluminum-to-pavement sparks
Considered a competent ignition source.
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 the 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.
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.
Beyond a Reasonable Doubt
The burden of proof in a criminal trial.
Bimetallic Thermostats
The component that controls temperature in many heat-producing appliances.
BLEVE
, This may occur when the vapor pressure of a liquid exceeds atmospheric pressure.
Boiling Point
The temperature or point at which the vapor pressure of a liquid equals the external pressure
applied.
Bonding
The process of electrically connecting two or more conductive objects.
Bottom Passenger Side of the Windshield
Most engine fires typically penetrate the interior compartment at this location of the vehicle.
Brass Prongs (male ends)
An investigator can closely examine this component of a cord to determine if it was plugged into
a receptacle.
Calcination
The chemical and physical changes that occur in gypsum wallboard surfaces during a fire.
Carbon Monoxide
A narcotic gas that one might be exposed to in the fire.
Carbon Monoxide Poisoning
This toxic condition does NOT cause a cherry-pink coloration to the skin of the fire victim and is
NOT visible on all skin types.
Carburetor Backfire
This occurrence is the most common open-flame ignition source in non-fuel injected vehicles.
Ceiling jet
When the fire plume reaches the ceiling of a room and moves laterally along the ceiling.
Christmas Tree
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter than a pool of
gasoline or a polyurethane chair.
Clean Burn
This occurs when intense radiated heat or direct flame contacts a surface during the fire,
burning away deposits.
