Fire Investigator - master for TCFP
test 2025 Questions and Answers
100% pass
Is NFPA 921 a guide or a standard? - ✔✔It is the Guide for Fire and Explosion
Investigations
What are the six steps of the scientific method? - ✔✔Recognize the need
Define the problem
Collect the data
Analyze the data
Develop a hypothesis
Test the hypothesis
What step of the scientific method is inductive reasoning? - ✔✔Analyze the data
What step of the scientific method is deductive reasoning? - ✔✔Test the hypothesis
What are the four parts of the fire tetrahedron? - ✔✔Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? -
✔✔Endothermic
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
,What is heat transfer by direct contact called? - ✔✔Conduction
What is heat transfer by gas flow / air movement called? - ✔✔Convection
What is heat transfer by microwave energy called? - ✔✔Radiation
What is a fuel controlled fire? - ✔✔A fire that is limited by the amount of
combustibles.
What is a ventilation controlled fire? - ✔✔A fire that is limited by the amount of
oxygen.
What are the stages of fire growth? - ✔✔Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - ✔✔The transition phase from growth to fully developed,
where all surfaces reach ignition temperature almost simultaneously.
What is ignition of the underside of the hot gas layer called? - ✔✔Flameover or
rollover
What factors influence flashover conditions? - ✔✔Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? - ✔✔The physical manifestation of the affects of fire on
materials.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
,What are the different types of fire patterns on the walls and ceiling? - ✔✔Plume
Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - ✔✔The separation of chunks of concrete with explosive force
caused by the expansion of water (moisture) trapped in the concrete as it turns to
steam
What is char? - ✔✔Pyrolized carbonaceous material
What is oxidation? - ✔✔Physical change in appearance of a material resulting from
the combination of oxygen.
What is alloying? - ✔✔Mixing two metals heated then cooled to change their
properties. Often melts at a lower temperature.
What is a clean burn? - ✔✔When there was enough heat to burn away all carbon
deposits (soot) on a surface leaving a "clean" surface. Occurs on non-combustible
surfaces.
What is soot? - ✔✔Elemental carbon produced during incomplete combustion.
What is calcination? - ✔✔When chemically bound water is driven out of gypsum
walls by the heat of the fire.
Does a 25 Watt light bulb expand towards the fire or pull inward away from it? -
✔✔Bulbs 25 watts or less pull away. Bulbs greater than 25 watts will expand
towards the fire.
What causes heat shadowing? - ✔✔An object blocking the travel of radiated heat.
What is a dead load? - ✔✔The weight of things attached to the building, like
flooring, cloumns, and roof coverings.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 3
, What is a live load? - ✔✔A load that can move, like people, furniture, wind, water,
and snow.
What is compartmentation? - ✔✔Design features of a building that limit fire growth
to the room of origin.
What are the five building construction types? - ✔✔Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - ✔✔Exterior walls are masonry and frame is wood.
What is wood frame construction? - ✔✔Lightweight wood construction, used in
apartments, houses.
What is platform frame construction? - ✔✔Each floor is a seperate platform.
What is balloon frame construction? - ✔✔The wall studs extend from the foundation
to the roof.
What is Ohm's Law? - ✔✔V=IR
(E = I x R)
What is voltage? - ✔✔Pressure
What is current? - ✔✔Flow
What is resistance? - ✔✔Friction, opposition to the flow
What is an overload? - ✔✔Power needs exceed the circuit's capacity.
Alternating Current VS Direct Current - ✔✔Alternating current - the electrons flow
out from the source and then back to it, alternating directions.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 4
test 2025 Questions and Answers
100% pass
Is NFPA 921 a guide or a standard? - ✔✔It is the Guide for Fire and Explosion
Investigations
What are the six steps of the scientific method? - ✔✔Recognize the need
Define the problem
Collect the data
Analyze the data
Develop a hypothesis
Test the hypothesis
What step of the scientific method is inductive reasoning? - ✔✔Analyze the data
What step of the scientific method is deductive reasoning? - ✔✔Test the hypothesis
What are the four parts of the fire tetrahedron? - ✔✔Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? -
✔✔Endothermic
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
,What is heat transfer by direct contact called? - ✔✔Conduction
What is heat transfer by gas flow / air movement called? - ✔✔Convection
What is heat transfer by microwave energy called? - ✔✔Radiation
What is a fuel controlled fire? - ✔✔A fire that is limited by the amount of
combustibles.
What is a ventilation controlled fire? - ✔✔A fire that is limited by the amount of
oxygen.
What are the stages of fire growth? - ✔✔Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - ✔✔The transition phase from growth to fully developed,
where all surfaces reach ignition temperature almost simultaneously.
What is ignition of the underside of the hot gas layer called? - ✔✔Flameover or
rollover
What factors influence flashover conditions? - ✔✔Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? - ✔✔The physical manifestation of the affects of fire on
materials.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
,What are the different types of fire patterns on the walls and ceiling? - ✔✔Plume
Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - ✔✔The separation of chunks of concrete with explosive force
caused by the expansion of water (moisture) trapped in the concrete as it turns to
steam
What is char? - ✔✔Pyrolized carbonaceous material
What is oxidation? - ✔✔Physical change in appearance of a material resulting from
the combination of oxygen.
What is alloying? - ✔✔Mixing two metals heated then cooled to change their
properties. Often melts at a lower temperature.
What is a clean burn? - ✔✔When there was enough heat to burn away all carbon
deposits (soot) on a surface leaving a "clean" surface. Occurs on non-combustible
surfaces.
What is soot? - ✔✔Elemental carbon produced during incomplete combustion.
What is calcination? - ✔✔When chemically bound water is driven out of gypsum
walls by the heat of the fire.
Does a 25 Watt light bulb expand towards the fire or pull inward away from it? -
✔✔Bulbs 25 watts or less pull away. Bulbs greater than 25 watts will expand
towards the fire.
What causes heat shadowing? - ✔✔An object blocking the travel of radiated heat.
What is a dead load? - ✔✔The weight of things attached to the building, like
flooring, cloumns, and roof coverings.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 3
, What is a live load? - ✔✔A load that can move, like people, furniture, wind, water,
and snow.
What is compartmentation? - ✔✔Design features of a building that limit fire growth
to the room of origin.
What are the five building construction types? - ✔✔Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - ✔✔Exterior walls are masonry and frame is wood.
What is wood frame construction? - ✔✔Lightweight wood construction, used in
apartments, houses.
What is platform frame construction? - ✔✔Each floor is a seperate platform.
What is balloon frame construction? - ✔✔The wall studs extend from the foundation
to the roof.
What is Ohm's Law? - ✔✔V=IR
(E = I x R)
What is voltage? - ✔✔Pressure
What is current? - ✔✔Flow
What is resistance? - ✔✔Friction, opposition to the flow
What is an overload? - ✔✔Power needs exceed the circuit's capacity.
Alternating Current VS Direct Current - ✔✔Alternating current - the electrons flow
out from the source and then back to it, alternating directions.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 4
