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FIRE INVESTIGATOR - MASTER FOR TCFP TEST QUESTIONS AND ANSWERS
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FIRE INVESTIGATOR - MASTER FORTCFP TEST QUESTIONS AND ANSWERS
Is NFPA 921 a guide or a standard? - answers It is the Guide for Fire and Explosion Investigations
What are the six steps of the scientific method? - answers 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? - answers Analyze the data
What step of the scientific method is deductive reasoning? - answers Test the hypothesis
What are the four parts of the fire tetrahedron? - answers Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? - answers
Endothermic
What is heat transfer by direct contact called? - answers Conduction
What is heat transfer by gas flow / air movement called? - answers Convection
,What is heat transfer by microwave energy called? - answers Radiation
What is a fuel controlled fire? - answers A fire that is limited by the amount of combustibles.
What is a ventilation controlled fire? - answers A fire that is limited by the amount of oxygen.
What are the stages of fire growth? - answers Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? - answers 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? - answers Flameover or rollover
What factors influence flashover conditions? - answers Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? - answers The physical manifestation of the affects of fire on materials.
,What are the different types of fire patterns on the walls and ceiling? - answers Plume
Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - answers 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? - answers Pyrolized carbonaceous material
What is oxidation? - answers Physical change in appearance of a material resulting from the
combination of oxygen.
What is alloying? - answers Mixing two metals heated then cooled to change their properties.
Often melts at a lower temperature.
What is a clean burn? - answers 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? - answers Elemental carbon produced during incomplete combustion.
What is calcination? - answers 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? - answers Bulbs
25 watts or less pull away. Bulbs greater than 25 watts will expand towards the fire.
What causes heat shadowing? - answers An object blocking the travel of radiated heat.
, What is a dead load? - answers The weight of things attached to the building, like flooring,
cloumns, and roof coverings.
What is a live load? - answers A load that can move, like people, furniture, wind, water, and
snow.
What is compartmentation? - answers Design features of a building that limit fire growth to the
room of origin.
What are the five building construction types? - answers Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - answers Exterior walls are masonry and frame is wood.
What is wood frame construction? - answers Lightweight wood construction, used in
apartments, houses.
What is platform frame construction? - answers Each floor is a seperate platform.
What is balloon frame construction? - answers The wall studs extend from the foundation to the
roof.
What is Ohm's Law? - answers V=IR
(E = I x R)
What is voltage? - answers Pressure
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