4/5/25, 6:30 IAAI CFI Study Questions () |
PM
IAAI CFI STUDY QUESTIONS (2025) AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (257)
Combustible Liquid A liquid with a flash point ABOVE 100F
If the current flowing out from an electrical panel is 12.5 amps, and it then flows
12.5 through an electrical load of 1500 watts, what is the amperage of the remaining
current flow of the return circuit?
If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the
wattage?
1000
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987 The year of the first edition of NFPA 1033
The recommended distance for securing the perimeter of a blast scene
1.5 times
*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
The measurement of the radiant heat flux (from gas layer to the floor) that
2 W/cm2
indicates the onset of flashover
The voltage between the two hot wires at the service entrance cables in
240 volts 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
In high-pressure fuel-injected vehicles, this is the typical range of pressure that is
35-70 p.s.i.
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
Two factors or situations leading to a fire that may show the nature of the incident
Act or Omission
responsibility.
Additional Investigative This concept should not be included in a summary report of findings.
Recommendations
Admiralty Law A law that may govern the fire investigation of a boat
A type of device in a vehicle, which can cause an electrical overload to factory
After-market Equipment
installed wiring
Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most
Alive and Breathing
significant factors in confirming that, at the time of the fire, the victim was WHAT?
Those who have the responsibility for monitoring safety conditions at the fire or
All Team Members
explosion scene
1220°F The melting temperature of aluminum
1/
5
, 4/5/25, 6:30 IAAI CFI Study Questions () |
PM
Which one of these is NOT considered a competent ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
A meaningful analysis of a fire requires an understanding of the fire growth, the
Heat Release Rate
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
A deflagration resulting from the sudden introduction of air into a confined space
Backdraft
containing oxygen-deficient products of incomplete combustion
An explosion caused by a combination of combustible materials heated to the
Backdraft
ignition point and a sudden introduction of oxygen to support combustion
A boat device that owners fail to keep clean, which is a frequent cause of engine
Backfire Flame Arrestor
compartment fires on boats
A device on a fluorescent light fixture that transforms the voltage from normal
Ballast
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
This may occur when the vapor pressure of a liquid exceeds atmospheric pressure
BLEVE
*And this is the most common mechanical explosion
The temperature or point at which the vapor pressure of a liquid equals the
Boiling Point
external pressure applied
Bonding The process of electrically connecting two or more conductive objects
Most engine fires typically penetrate the interior compartment at this location of
Bottom Passenger Side of the Windshield
the vehicle
An investigator can closely examine this component of a cord to determine if it
Brass Prongs (male ends)
was plugged into a receptacle
The chemical and physical changes that occur in gypsum wallboard surfaces
Calcination
during a fire
Carbon Monoxide A narcotic gas that one might be exposed to in the fire
Carbon Monoxide The levels of this toxin dissipate over time after removal from the fire environment.
This toxic condition does NOT cause a cherry-pink coloration to the skin of the
Carbon Monoxide Poisoning
fire victim and is NOT visible on all skin types
This occurrence is the most common open-flame ignition source in non-fuel
Carburetor Backfire
injected vehicles
When the fire plume reaches the ceiling of a room and moves laterally along the
Ceiling jet
ceiling
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter
Christmas Tree
than a pool of gasoline or a polyurethane chair
This occurs when intense radiated heat or direct flame contacts a surface during
Clean Burn
the fire, burning away deposits
This is a fire effect to furniture that does NOT provide the investigators with clues
Collapsed Furniture Springs
concerning the type of ignition source, but can show fire spread and intensity
A fire characteristic that is NOT necessarily an accurate indicator of the
Color
flame temperature
2/
5
PM
IAAI CFI STUDY QUESTIONS (2025) AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED LATEST UPDATE
Terms in this set (257)
Combustible Liquid A liquid with a flash point ABOVE 100F
If the current flowing out from an electrical panel is 12.5 amps, and it then flows
12.5 through an electrical load of 1500 watts, what is the amperage of the remaining
current flow of the return circuit?
If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the
wattage?
1000
*Power (P) = current (I) x voltage (V)
Watts = amps x volts
1987 The year of the first edition of NFPA 1033
The recommended distance for securing the perimeter of a blast scene
1.5 times
*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
The measurement of the radiant heat flux (from gas layer to the floor) that
2 W/cm2
indicates the onset of flashover
The voltage between the two hot wires at the service entrance cables in
240 volts 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
In high-pressure fuel-injected vehicles, this is the typical range of pressure that is
35-70 p.s.i.
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
Two factors or situations leading to a fire that may show the nature of the incident
Act or Omission
responsibility.
Additional Investigative This concept should not be included in a summary report of findings.
Recommendations
Admiralty Law A law that may govern the fire investigation of a boat
A type of device in a vehicle, which can cause an electrical overload to factory
After-market Equipment
installed wiring
Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most
Alive and Breathing
significant factors in confirming that, at the time of the fire, the victim was WHAT?
Those who have the responsibility for monitoring safety conditions at the fire or
All Team Members
explosion scene
1220°F The melting temperature of aluminum
1/
5
, 4/5/25, 6:30 IAAI CFI Study Questions () |
PM
Which one of these is NOT considered a competent ignition source?
Metal-to-metal sparks,
Aluminum-to-pavement sparks Aluminum-to-pavement sparks,
Metal-to-pavement sparks,
Motor bearing sparks
A meaningful analysis of a fire requires an understanding of the fire growth, the
Heat Release Rate
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
A deflagration resulting from the sudden introduction of air into a confined space
Backdraft
containing oxygen-deficient products of incomplete combustion
An explosion caused by a combination of combustible materials heated to the
Backdraft
ignition point and a sudden introduction of oxygen to support combustion
A boat device that owners fail to keep clean, which is a frequent cause of engine
Backfire Flame Arrestor
compartment fires on boats
A device on a fluorescent light fixture that transforms the voltage from normal
Ballast
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
This may occur when the vapor pressure of a liquid exceeds atmospheric pressure
BLEVE
*And this is the most common mechanical explosion
The temperature or point at which the vapor pressure of a liquid equals the
Boiling Point
external pressure applied
Bonding The process of electrically connecting two or more conductive objects
Most engine fires typically penetrate the interior compartment at this location of
Bottom Passenger Side of the Windshield
the vehicle
An investigator can closely examine this component of a cord to determine if it
Brass Prongs (male ends)
was plugged into a receptacle
The chemical and physical changes that occur in gypsum wallboard surfaces
Calcination
during a fire
Carbon Monoxide A narcotic gas that one might be exposed to in the fire
Carbon Monoxide The levels of this toxin dissipate over time after removal from the fire environment.
This toxic condition does NOT cause a cherry-pink coloration to the skin of the
Carbon Monoxide Poisoning
fire victim and is NOT visible on all skin types
This occurrence is the most common open-flame ignition source in non-fuel
Carburetor Backfire
injected vehicles
When the fire plume reaches the ceiling of a room and moves laterally along the
Ceiling jet
ceiling
An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter
Christmas Tree
than a pool of gasoline or a polyurethane chair
This occurs when intense radiated heat or direct flame contacts a surface during
Clean Burn
the fire, burning away deposits
This is a fire effect to furniture that does NOT provide the investigators with clues
Collapsed Furniture Springs
concerning the type of ignition source, but can show fire spread and intensity
A fire characteristic that is NOT necessarily an accurate indicator of the
Color
flame temperature
2/
5
