©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
Fire Investigator - master for TCFP test.
Exam Questions And Answers |Latest 2025 |
Guaranteed Pass.
Is NFPA 921 a guide or a standard? - Answer✔It is the Guide for Fire and Explosion
Investigations
What are the six steps of the scientific method? - Answer✔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? - Answer✔Analyze the data
What step of the scientific method is deductive reasoning? - Answer✔Test the hypothesis
What are the four parts of the fire tetrahedron? - Answer✔Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? -
Answer✔Endothermic
What is heat transfer by direct contact called? - Answer✔Conduction
What is heat transfer by gas flow / air movement called? - Answer✔Convection
What is heat transfer by microwave energy called? - Answer✔Radiation
What is a fuel controlled fire? - Answer✔A fire that is limited by the amount of combustibles.
1
,©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
What is a ventilation controlled fire? - Answer✔A fire that is limited by the amount of oxygen.
What are the stages of fire growth? - Answer✔Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - Answer✔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? - Answer✔Flameover or rollover
What factors influence flashover conditions? - Answer✔Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? - Answer✔The physical manifestation of the affects of fire on materials.
What are the different types of fire patterns on the walls and ceiling? - Answer✔Plume
Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - Answer✔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? - Answer✔Pyrolized carbonaceous material
What is oxidation? - Answer✔Physical change in appearance of a material resulting from the
combination of oxygen.
What is alloying? - Answer✔Mixing two metals heated then cooled to change their properties.
Often melts at a lower temperature.
What is a clean burn? - Answer✔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? - Answer✔Elemental carbon produced during incomplete combustion.
2
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
What is calcination? - Answer✔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? - Answer✔Bulbs
25 watts or less pull away. Bulbs greater than 25 watts will expand towards the fire.
What causes heat shadowing? - Answer✔An object blocking the travel of radiated heat.
What is a dead load? - Answer✔The weight of things attached to the building, like flooring,
cloumns, and roof coverings.
What is a live load? - Answer✔A load that can move, like people, furniture, wind, water, and
snow.
What is compartmentation? - Answer✔Design features of a building that limit fire growth to
the room of origin.
What are the five building construction types? - Answer✔Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - Answer✔Exterior walls are masonry and frame is wood.
What is wood frame construction? - Answer✔Lightweight wood construction, used in
apartments, houses.
What is platform frame construction? - Answer✔Each floor is a seperate platform.
What is balloon frame construction? - Answer✔The wall studs extend from the foundation to
the roof.
What is Ohm's Law? - Answer✔V=IR
(E = I x R)
What is voltage? - Answer✔Pressure
What is current? - Answer✔Flow
What is resistance? - Answer✔Friction, opposition to the flow
What is an overload? - Answer✔Power needs exceed the circuit's capacity.
Alternating Current VS Direct Current - Answer✔Alternating current - the electrons flow out
from the source and then back to it, alternating directions.
3
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
Direct current - electrons flow one way.
Single Phase service - Answer✔Residential. Three conductors: Two insulated conductors at 120
V each, and a bare ground wire.
Three phase system - Answer✔Commercial. Four conductors: Three insulated conductors (480,
240, or 208 V), and a bare ground wire.
What is the difference between grounding and bonding? - Answer✔Grounding connects the
system to the earth (ground). Bonding connects to systems together so the charge stays the
same between them.
What is overcurrent protection? - Answer✔A device that protects the system from excess
current. Includes:
Circuit breakers
Plug fuses
Type S fuses
Time delay fuses
Cartridge fuses
What are the colors of residential wires? - Answer✔Hot - black or red
Neutral - gray or white
Ground - bare or green
What are some methods of electrical heat production? - Answer✔Resistance heating
Short circuit
Ground fault
Parting Arc
Excessive current
What is the difference between and arc and a spark? - Answer✔Sparks are thrown metal
particles
Arcs are brief discharges of electricity
What is arc tracking? - Answer✔Arc following salts, dusts, or liquids along a path.
What is arc mapping? - Answer✔Mapping out of electrical damage in a circuit.
What is static electricity? - Answer✔A stationary charge caused by movement of one object
against another. Lighting is a static disharge.
4
Fire Investigator - master for TCFP test.
Exam Questions And Answers |Latest 2025 |
Guaranteed Pass.
Is NFPA 921 a guide or a standard? - Answer✔It is the Guide for Fire and Explosion
Investigations
What are the six steps of the scientific method? - Answer✔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? - Answer✔Analyze the data
What step of the scientific method is deductive reasoning? - Answer✔Test the hypothesis
What are the four parts of the fire tetrahedron? - Answer✔Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? -
Answer✔Endothermic
What is heat transfer by direct contact called? - Answer✔Conduction
What is heat transfer by gas flow / air movement called? - Answer✔Convection
What is heat transfer by microwave energy called? - Answer✔Radiation
What is a fuel controlled fire? - Answer✔A fire that is limited by the amount of combustibles.
1
,©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
What is a ventilation controlled fire? - Answer✔A fire that is limited by the amount of oxygen.
What are the stages of fire growth? - Answer✔Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - Answer✔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? - Answer✔Flameover or rollover
What factors influence flashover conditions? - Answer✔Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? - Answer✔The physical manifestation of the affects of fire on materials.
What are the different types of fire patterns on the walls and ceiling? - Answer✔Plume
Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - Answer✔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? - Answer✔Pyrolized carbonaceous material
What is oxidation? - Answer✔Physical change in appearance of a material resulting from the
combination of oxygen.
What is alloying? - Answer✔Mixing two metals heated then cooled to change their properties.
Often melts at a lower temperature.
What is a clean burn? - Answer✔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? - Answer✔Elemental carbon produced during incomplete combustion.
2
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
What is calcination? - Answer✔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? - Answer✔Bulbs
25 watts or less pull away. Bulbs greater than 25 watts will expand towards the fire.
What causes heat shadowing? - Answer✔An object blocking the travel of radiated heat.
What is a dead load? - Answer✔The weight of things attached to the building, like flooring,
cloumns, and roof coverings.
What is a live load? - Answer✔A load that can move, like people, furniture, wind, water, and
snow.
What is compartmentation? - Answer✔Design features of a building that limit fire growth to
the room of origin.
What are the five building construction types? - Answer✔Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - Answer✔Exterior walls are masonry and frame is wood.
What is wood frame construction? - Answer✔Lightweight wood construction, used in
apartments, houses.
What is platform frame construction? - Answer✔Each floor is a seperate platform.
What is balloon frame construction? - Answer✔The wall studs extend from the foundation to
the roof.
What is Ohm's Law? - Answer✔V=IR
(E = I x R)
What is voltage? - Answer✔Pressure
What is current? - Answer✔Flow
What is resistance? - Answer✔Friction, opposition to the flow
What is an overload? - Answer✔Power needs exceed the circuit's capacity.
Alternating Current VS Direct Current - Answer✔Alternating current - the electrons flow out
from the source and then back to it, alternating directions.
3
, ©THEBRIGHT 2024/2025 ALL RIGHTS RESERVED 10:15AM A+
Direct current - electrons flow one way.
Single Phase service - Answer✔Residential. Three conductors: Two insulated conductors at 120
V each, and a bare ground wire.
Three phase system - Answer✔Commercial. Four conductors: Three insulated conductors (480,
240, or 208 V), and a bare ground wire.
What is the difference between grounding and bonding? - Answer✔Grounding connects the
system to the earth (ground). Bonding connects to systems together so the charge stays the
same between them.
What is overcurrent protection? - Answer✔A device that protects the system from excess
current. Includes:
Circuit breakers
Plug fuses
Type S fuses
Time delay fuses
Cartridge fuses
What are the colors of residential wires? - Answer✔Hot - black or red
Neutral - gray or white
Ground - bare or green
What are some methods of electrical heat production? - Answer✔Resistance heating
Short circuit
Ground fault
Parting Arc
Excessive current
What is the difference between and arc and a spark? - Answer✔Sparks are thrown metal
particles
Arcs are brief discharges of electricity
What is arc tracking? - Answer✔Arc following salts, dusts, or liquids along a path.
What is arc mapping? - Answer✔Mapping out of electrical damage in a circuit.
What is static electricity? - Answer✔A stationary charge caused by movement of one object
against another. Lighting is a static disharge.
4
