TCFP Fire Investigator -Exam With Well Detailed
Question & Answers Perfectly A+ Graded Newest
Updated Versions
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
1
,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.
What is a ventilation controlled fire? ANSWER>>>>-A fire that is limited by the amount
of oxygen.
2
,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.
3
, 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.
What is calcination? ANSWER>>>>-When chemically bound water is driven out of
gypsum walls by the heat of the fire.
4
Question & Answers Perfectly A+ Graded Newest
Updated Versions
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
1
,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.
What is a ventilation controlled fire? ANSWER>>>>-A fire that is limited by the amount
of oxygen.
2
,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.
3
, 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.
What is calcination? ANSWER>>>>-When chemically bound water is driven out of
gypsum walls by the heat of the fire.
4
