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