IAAI CFI Study 260 Questions (2024) and 100% Verified Correct Answers Guaranteed A+
1.5 times - CORRECT ANSWER: The recommended distance for securing the
perimeter of a blast scene
*That is, the distance from the furthest debris
2 W/cm2 - CORRECT ANSWER: The measurement of the radiant heat flux (from gas
layer to the floor) that indicates the onset of flashover
3 years - CORRECT ANSWER: The revision cycle for NFPA 921 (timespan)
5 and 17 - CORRECT ANSWER: The lower explosive and upper explosive limit of
natural gas (methane)?
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?
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
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)
350°F - CORRECT ANSWER: The flash point of power steering fluid
680°F - CORRECT ANSWER: The ignition temperature of power steering fluid
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
1100°F - CORRECT ANSWER: What temperature in the upper gas layer causes the
onset of Flashover?
1220°F - CORRECT ANSWER: The melting temperature of aluminum
1960°F - CORRECT ANSWER: The temperature at which copper melts
1987 - CORRECT ANSWER: The year of the first edition of NFPA 1033
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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
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
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
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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
Carbon Monoxide - CORRECT ANSWER: The levels of this toxin dissipate over time
after removal from the fire environment.
Carbon Monoxide Poisoning - CORRECT ANSWER: 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 - CORRECT ANSWER: This occurrence is the most common open-
flame ignition source in non-fuel injected vehicles
Ceiling jet - CORRECT ANSWER: When the fire plume reaches the ceiling of a room
and moves laterally along the ceiling
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