1
TCFP FIRE INVESTIGATOR TEST /FIRE
INVESTIGATOR -MASTER FOR TCFP EXAM ACTUAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A
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
, 2
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.
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
, 3
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.
, 4
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.
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
TCFP FIRE INVESTIGATOR TEST /FIRE
INVESTIGATOR -MASTER FOR TCFP EXAM ACTUAL
EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A
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
, 2
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.
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
, 3
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.
, 4
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.
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
