Fire Investigator - Study questions for
TCFP Fire Investigator Exam Q&A 100%
Solved | Graded A+
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
1|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, What kind of reaction absorbs energy, an endothermic or an exothermic
reaction? - ✔✔Endothermic
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
2|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
TCFP Fire Investigator Exam Q&A 100%
Solved | Graded A+
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
1|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, What kind of reaction absorbs energy, an endothermic or an exothermic
reaction? - ✔✔Endothermic
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
2|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
