2023-2024 IAAI CFI Study Questions With Answers with Answers (258 Solved Questions)

Name: 2023-2024 IAAI CFI Study Questions With Answers with Answers (258 Solved Questions)
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IAAI CFI STUDY QUESTIONS WITH ANSWERS
(2023/2024)
Combustible Liquid - -answer-A liquid with a flash point ABOVE 100F
12.5 - -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 - -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 - -answer-The year of the first edition of NFPA 1033
1.5 times - -answer-The recommended distance for securing the
perimeter of a blast scene
*That is, the distance from the furthest debris
1100°F - -answer-What temperature in the upper gas layer causes the
onset of Flashover?
1960°F - -answer-The temperature at which copper melts
2 W/cm2 - -answer-The measurement of the radiant heat flux (from gas
layer to the floor) that indicates the onset of flashover
240 volts - -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 - -answer-The revision cycle for NFPA 921 (timespan)

350°F - -answer-The flash point of power steering fluid
35-70 p.s.i. - -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 - -answer-The lower explosive and upper explosive limit of
natural gas (methane)?
680°F - -answer-The ignition temperature of power steering fluid
Fuel - -answer-Any substance that can undergo combustion
Act or Omission - -answer-Two factors or situations leading to a fire that
may show the nature of the incident responsibility.
Additional Investigative Recommendations - -answer-This concept should
not be included in a summary report of findings.
Admiralty Law - -answer-A law that may govern the fire investigation of a
boat
After-market Equipment - -answer-A type of device in a vehicle, which
can cause an electrical overload to factory installed wiring
Alive and Breathing - -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 - -answer-Those who have the responsibility for
monitoring safety conditions at the fire or explosion scene
1220°F - -answer-The melting temperature of aluminum
Aluminum-to-pavement sparks - -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 - -answer-A meaningful analysis of a fire requires an
understanding of the fire growth, the total heat released, and WHAT?
Arc-fault circuit interrupter - -answer-What does he term AFCI stand for?
And, the "A" specifically represents what?
ASTM - -answer-The organization that develops standard methods for
testing materials
Auto-ignition - -answer-Initiation of combustion by heat but without a
spark or flame
Backdraft - -answer-A deflagration resulting from the sudden
introduction of air into a confined space containing oxygen-deficient
products of incomplete combustion
Backdraft - -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 - -answer-A boat device that owners fail to keep
clean, which is a frequent cause of engine compartment fires on boats
Ballast - -answer-A device on a fluorescent light fixture that transforms
the voltage from normal household voltage to a higher voltage
Battery - -answer-The starter motor draws its energy from this source
Beyond a Reasonable Doubt - -answer-The burden of proof in a criminal
trial
Bimetallic Thermostats - -answer-The component that controls
temperature in many heat-producing appliances

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BLEVE - -answer-This may occur when the vapor pressure of a liquid
exceeds atmospheric pressure
*And this is the most common mechanical explosion
Boiling Point - -answer-The temperature or point at which the vapor
pressure of a liquid equals the external pressure applied
Bonding - -answer-The process of electrically connecting two or more
conductive objects
Bottom Passenger Side of the Windshield - -answer-Most engine fires
typically penetrate the interior compartment at this location of the vehicle
Brass Prongs (male ends) - -answer-An investigator can closely examine
this component of a cord to determine if it was plugged into a receptacle
Calcination - -answer-The chemical and physical changes that occur in
gypsum wallboard surfaces during a fire
Carbon Monoxide - -answer-A narcotic gas that one might be exposed to
in the fire
Carbon Monoxide - -answer-The levels of this toxin dissipate over time
after removal from the fire environment.
Carbon Monoxide Poisoning - -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 - -answer-This occurrence is the most common
open-flame ignition source in non-fuel injected vehicles
Ceiling jet - -answer-When the fire plume reaches the ceiling of a room
and moves laterally along the ceiling

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Christmas Tree - -answer-An item in the home that burns at a peak HRR
of 3000-5000kW, which is hotter than a pool of gasoline or a polyurethane
chair
Clean Burn - -answer-This occurs when intense radiated heat or direct
flame contacts a surface during the fire, burning away deposits
Collapsed Furniture Springs - -answer-This is a fire effect to furniture
that does NOT provide the investigators with clues concerning the type of
ignition source, but can show fire spread and intensity
Color - -answer-A fire characteristic that is NOT necessarily an accurate
indicator of the flame temperature
Color Codes - -answer-This feature distinguishes the heat-sensitive bulbs
of sprinkler heads from each other
Combustion - -answer-A chemical process of oxidation, which occurs at a
rate fast enough to produce heat and usually light in the form of either a
glow or a flame
Compartmentation - -answer-A building design feature that aims to limit
the fire to its origin.
Competent Ignition Source - -answer-Located at the origin, these should
be considered individually during the development of a cause hypothesis
Complete PPE - -answer-This should be donned when dealing with
hazardous chemicals
Conduction - -answer-An example of heat transfer, when the heating of a
steel beam to an unexposed part of a building results in a fire in that
location
Connection Points - -answer-Overheating on a circuit is most likely to
occur at this location on a circuit

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Joint Investigation - -answer-Consensus agreement between interested
parties should be developed prior to the commencement of WHAT?
Crazing - -answer-Complicated patterns in glass
Crime Scenes - -answer-A type of scene or circumstances, in which fires
do NOT always destroy all physical evidence
Current (amperage) - -answer-A factor in OHM's law that can be
calculated if you know resistance and voltage
Deductive Reasoning - -answer-The reasoning in the scientific method
used to test an hypothesis
Deductive Reasoning - -answer-The reasoning process of moving from
generalizations to particular assertion
(*"Reduce to Deduce"
*Test hypothesis ("deduce")
*Test based on known facts
*More confident assertion than induction)
Demonstrative Evidence - -answer-Type of evidence consisting of tangible
items
*as opposed to Testimonial Evidence or Documentary (written) Evidence
Depth of Char - -answer-A burn pattern analysis that is MORE useful for
evaluating fire spread, rather than length or intensity of burning
Differential - -answer-All voltages are _________________, which means
that a battery or DC generator creates a potential difference that can force
charge through a wire
Diffusion Flame Burning - -answer-The ordinary sustained burning mode
in most fires

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2023-2024 IAAI CFI Study Questions With Answers with Answers (258 Solved Questions)

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