IAAI CFI LATEST 2026 CORE EXAM MANUAL QUESTIONS
AND SOLUTIONS RATED A+
✔✔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 - ✔✔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
*And this is the most common mechanical explosion
✔✔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
AND SOLUTIONS RATED A+
✔✔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 - ✔✔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
*And this is the most common mechanical explosion
✔✔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
