IAAI CFI STUDY GUIDE 2021 EXAM
NEWEST COMPLETE QUESTIONS AND
CORRECT VERIFIED ANSWERS| WELL
GRADED A+|| UPDATED 2025
Act or Omission - CORRECT ANSWERS-Two factors or situations leading to a fire that
may show the nature of the incident responsibility.
Additional Investigative Recommendations - CORRECT ANSWERS-This concept
should not be included in a summary report of findings.
Admiralty Law - CORRECT ANSWERS-A law that may govern the fire investigation of a
boat
After-market Equipment - CORRECT ANSWERS-A type of device in a vehicle, which
can cause an electrical overload to factory installed wiring
Alive and Breathing - CORRECT ANSWERS-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 - CORRECT ANSWERS-Those who have the responsibility for
monitoring safety conditions at the fire or explosion scene
1220°F - CORRECT ANSWERS-The melting temperature of aluminum
Aluminum-to-pavement sparks - CORRECT ANSWERS-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 - CORRECT ANSWERS-A meaningful analysis of a fire requires an
understanding of the fire growth, the total heat released, and WHAT?
Arc-fault circuit interrupter - CORRECT ANSWERS-What does he term AFCI stand for?
And, the "A" specifically represents what?
ASTM - CORRECT ANSWERS-The organization that develops standard methods for
testing materials
,Auto-ignition - CORRECT ANSWERS-Initiation of combustion by heat but without a
spark or flame
Backdraft - CORRECT ANSWERS-A deflagration resulting from the sudden introduction
of air into a confined space containing oxygen-deficient products of incomplete
combustion
Combustible Liquid - CORRECT ANSWERS-A liquid with a flash point ABOVE 100F
12.5 - CORRECT ANSWERS-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 - CORRECT ANSWERS-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 - CORRECT ANSWERS-The year of the first edition of NFPA 1033
1.5 times - CORRECT ANSWERS-The recommended distance for securing the
perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - CORRECT ANSWERS-What temperature in the upper gas layer causes the
onset of Flashover?
1960°F - CORRECT ANSWERS-The temperature at which copper melts
2 W/cm2 - CORRECT ANSWERS-The measurement of the radiant heat flux (from gas
layer to the floor) that indicates the onset of flashover
240 volts - CORRECT ANSWERS-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 - CORRECT ANSWERS-The revision cycle for NFPA 921 (timespan)
350°F - CORRECT ANSWERS-The flash point of power steering fluid
35-70 p.s.i. - CORRECT ANSWERS-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 - CORRECT ANSWERS-The lower explosive and upper explosive limit of
natural gas (methane)?
680°F - CORRECT ANSWERS-The ignition temperature of power steering fluid
Fuel - CORRECT ANSWERS-Any substance that can undergo combustion
Backdraft - CORRECT ANSWERS-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 - CORRECT ANSWERS-A boat device that owners fail to keep
clean, which is a frequent cause of engine compartment fires on boats
Ballast - CORRECT ANSWERS-A device on a fluorescent light fixture that transforms
the voltage from normal household voltage to a higher voltage
Battery - CORRECT ANSWERS-The starter motor draws its energy from this source
Beyond a Reasonable Doubt - CORRECT ANSWERS-The burden of proof in a criminal
trial
Bimetallic Thermostats - CORRECT ANSWERS-The component that controls
temperature in many heat-producing appliances
BLEVE - CORRECT ANSWERS-This may occur when the vapor pressure of a liquid
exceeds atmospheric pressure
*And this is the most common mechanical explosion
Boiling Point - CORRECT ANSWERS-The temperature or point at which the vapor
pressure of a liquid equals the external pressure applied
Bonding - CORRECT ANSWERS-The process of electrically connecting two or more
conductive objects
Bottom Passenger Side of the Windshield - CORRECT ANSWERS-Most engine fires
typically penetrate the interior compartment at this location of the vehicle
Brass Prongs (male ends) - CORRECT ANSWERS-An investigator can closely examine
this component of a cord to determine if it was plugged into a receptacle
Calcination - CORRECT ANSWERS-The chemical and physical changes that occur in
gypsum wallboard surfaces during a fire
NEWEST COMPLETE QUESTIONS AND
CORRECT VERIFIED ANSWERS| WELL
GRADED A+|| UPDATED 2025
Act or Omission - CORRECT ANSWERS-Two factors or situations leading to a fire that
may show the nature of the incident responsibility.
Additional Investigative Recommendations - CORRECT ANSWERS-This concept
should not be included in a summary report of findings.
Admiralty Law - CORRECT ANSWERS-A law that may govern the fire investigation of a
boat
After-market Equipment - CORRECT ANSWERS-A type of device in a vehicle, which
can cause an electrical overload to factory installed wiring
Alive and Breathing - CORRECT ANSWERS-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 - CORRECT ANSWERS-Those who have the responsibility for
monitoring safety conditions at the fire or explosion scene
1220°F - CORRECT ANSWERS-The melting temperature of aluminum
Aluminum-to-pavement sparks - CORRECT ANSWERS-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 - CORRECT ANSWERS-A meaningful analysis of a fire requires an
understanding of the fire growth, the total heat released, and WHAT?
Arc-fault circuit interrupter - CORRECT ANSWERS-What does he term AFCI stand for?
And, the "A" specifically represents what?
ASTM - CORRECT ANSWERS-The organization that develops standard methods for
testing materials
,Auto-ignition - CORRECT ANSWERS-Initiation of combustion by heat but without a
spark or flame
Backdraft - CORRECT ANSWERS-A deflagration resulting from the sudden introduction
of air into a confined space containing oxygen-deficient products of incomplete
combustion
Combustible Liquid - CORRECT ANSWERS-A liquid with a flash point ABOVE 100F
12.5 - CORRECT ANSWERS-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 - CORRECT ANSWERS-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 - CORRECT ANSWERS-The year of the first edition of NFPA 1033
1.5 times - CORRECT ANSWERS-The recommended distance for securing the
perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - CORRECT ANSWERS-What temperature in the upper gas layer causes the
onset of Flashover?
1960°F - CORRECT ANSWERS-The temperature at which copper melts
2 W/cm2 - CORRECT ANSWERS-The measurement of the radiant heat flux (from gas
layer to the floor) that indicates the onset of flashover
240 volts - CORRECT ANSWERS-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 - CORRECT ANSWERS-The revision cycle for NFPA 921 (timespan)
350°F - CORRECT ANSWERS-The flash point of power steering fluid
35-70 p.s.i. - CORRECT ANSWERS-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 - CORRECT ANSWERS-The lower explosive and upper explosive limit of
natural gas (methane)?
680°F - CORRECT ANSWERS-The ignition temperature of power steering fluid
Fuel - CORRECT ANSWERS-Any substance that can undergo combustion
Backdraft - CORRECT ANSWERS-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 - CORRECT ANSWERS-A boat device that owners fail to keep
clean, which is a frequent cause of engine compartment fires on boats
Ballast - CORRECT ANSWERS-A device on a fluorescent light fixture that transforms
the voltage from normal household voltage to a higher voltage
Battery - CORRECT ANSWERS-The starter motor draws its energy from this source
Beyond a Reasonable Doubt - CORRECT ANSWERS-The burden of proof in a criminal
trial
Bimetallic Thermostats - CORRECT ANSWERS-The component that controls
temperature in many heat-producing appliances
BLEVE - CORRECT ANSWERS-This may occur when the vapor pressure of a liquid
exceeds atmospheric pressure
*And this is the most common mechanical explosion
Boiling Point - CORRECT ANSWERS-The temperature or point at which the vapor
pressure of a liquid equals the external pressure applied
Bonding - CORRECT ANSWERS-The process of electrically connecting two or more
conductive objects
Bottom Passenger Side of the Windshield - CORRECT ANSWERS-Most engine fires
typically penetrate the interior compartment at this location of the vehicle
Brass Prongs (male ends) - CORRECT ANSWERS-An investigator can closely examine
this component of a cord to determine if it was plugged into a receptacle
Calcination - CORRECT ANSWERS-The chemical and physical changes that occur in
gypsum wallboard surfaces during a fire
