1|Page
TCFP FIRE INVESTIGATOR EXAM 2025 |
ACTUAL QUESTIONS AND CORRECT
ANSWERS/ALREADY GRADED A+
Is NFPA 921 a guide or a standard? - Correct-answer-It is the Guide for Fire and
Explosion Investigations
What are the six steps of the scientific method? - Correct-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? - Correct-answer-
Analyze the data
,2|Page
What step of the scientific method is deductive reasoning? - Correct-answer-Test
the hypothesis
What are the four parts of the fire tetrahedron? - Correct-answer-Fuel (reducing
agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic
reaction? - Correct-answer-Endothermic
What is heat transfer by direct contact called? - Correct-answer-Conduction
What is heat transfer by gas flow / air movement called? - Correct-answer-
Convection
,3|Page
What is heat transfer by microwave energy called? - Correct-answer-Radiation
What is a fuel controlled fire? - Correct-answer-A fire that is limited by the
amount of combustibles.
What is a ventilation controlled fire? - Correct-answer-A fire that is limited by the
amount of oxygen.
What are the stages of fire growth? - Correct-answer-Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - Correct-answer-The transition phase from growth to fully
developed, where all surfaces reach ignition temperature almost simultaneously.
, 4|Page
What is ignition of the underside of the hot gas layer called? - Correct-answer-
Flameover or rollover
What factors influence flashover conditions? - Correct-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? - Correct-answer-The physical manifestation of the affects
of fire on materials.
What are the different types of fire patterns on the walls and ceiling? - Correct-
answer-Plume Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
TCFP FIRE INVESTIGATOR EXAM 2025 |
ACTUAL QUESTIONS AND CORRECT
ANSWERS/ALREADY GRADED A+
Is NFPA 921 a guide or a standard? - Correct-answer-It is the Guide for Fire and
Explosion Investigations
What are the six steps of the scientific method? - Correct-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? - Correct-answer-
Analyze the data
,2|Page
What step of the scientific method is deductive reasoning? - Correct-answer-Test
the hypothesis
What are the four parts of the fire tetrahedron? - Correct-answer-Fuel (reducing
agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic
reaction? - Correct-answer-Endothermic
What is heat transfer by direct contact called? - Correct-answer-Conduction
What is heat transfer by gas flow / air movement called? - Correct-answer-
Convection
,3|Page
What is heat transfer by microwave energy called? - Correct-answer-Radiation
What is a fuel controlled fire? - Correct-answer-A fire that is limited by the
amount of combustibles.
What is a ventilation controlled fire? - Correct-answer-A fire that is limited by the
amount of oxygen.
What are the stages of fire growth? - Correct-answer-Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - Correct-answer-The transition phase from growth to fully
developed, where all surfaces reach ignition temperature almost simultaneously.
, 4|Page
What is ignition of the underside of the hot gas layer called? - Correct-answer-
Flameover or rollover
What factors influence flashover conditions? - Correct-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? - Correct-answer-The physical manifestation of the affects
of fire on materials.
What are the different types of fire patterns on the walls and ceiling? - Correct-
answer-Plume Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
