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Fire Investigator - Master For TCFP Test Questions With Answers (Test Bank) Complete Solution
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Fire Investigator - Master For TCFP Test Questions With Answers (Test Bank) Complete Solution
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Fire Investigator - Master For TCFP Test Questionsand Answers (Test Bank) Complete Solution
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
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
What factors influence flashover conditions? - Size of the compartment
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
,What are fire patterns? - The physical manifestation of the affects of fire on materials.
What are the different types of fire patterns on the walls and ceiling? - Plume Generated patterns
(often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? - 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? - Pyrolized carbonaceous material
What is oxidation? - Physical change in appearance of a material resulting from the combination of
oxygen.
What is alloying? - Mixing two metals heated then cooled to change their properties. Often melts at
a lower temperature.
What is a clean burn? - 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? - Elemental carbon produced during incomplete combustion.
What is calcination? - 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? - Bulbs 25 watts or
less pull away. Bulbs greater than 25 watts will expand towards the fire.
, What causes heat shadowing? - An object blocking the travel of radiated heat.
What is a dead load? - The weight of things attached to the building, like flooring, cloumns, and roof
coverings.
What is a live load? - A load that can move, like people, furniture, wind, water, and snow.
What is compartmentation? - Design features of a building that limit fire growth to the room of
origin.
What are the five building construction types? - Type I - Fire resistant
Type II - Non combustible
Type III - Ordinary
Type IV - Heavy timber
Type V - Wood frame
What is ordinary construction? - Exterior walls are masonry and frame is wood.
What is wood frame construction? - Lightweight wood construction, used in apartments, houses.
What is platform frame construction? - Each floor is a seperate platform.
What is balloon frame construction? - The wall studs extend from the foundation to the roof.
What is Ohm's Law? - V=IR
(E = I x R)
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