Fire Investigator - master for TCFP Test:

Fire Investigator - master for TCFP Test:

Fire Investigator -Master for TCFP Test Bank

Is NFPA 921 a guide or a standard?(Ans- It is the Guide for Fire and Explosion Investigations

What are the six steps of the scientific method?(Ans- 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?(Ans- Analyze the data

What step of the scientific method is deductive reasoning?(Ans- Test the hypothesis

What are the four parts of the fire tetrahedron?(Ans- Fuel (reducing agent) Heat Oxidizing agent Uninhibited chemical chain reaction

What kind of reaction absorbs energy, an endothermic or an exothermic reaction?(Ans- Endothermic

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What is heat transfer by direct contact called?(Ans- Conduction

What is heat transfer by gas flow / air movement called?(Ans- Convection

What is heat transfer by microwave energy called?(Ans- Radiation

What is a fuel controlled fire?(Ans- A fire that is limited by the amount of combustibles.

What is a ventilation controlled fire?(Ans- A fire that is limited by the amount of oxygen.

What are the stages of fire growth?(Ans- Ignition Growth Flashover Fully Developed Decay

What is a flashover?(Ans- 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?(Ans- Flameover or rollover

What factors influence flashover conditions?(Ans- Size of the compartment Height of ceiling Ventilation 2 / 4

Amount of fuel Layout of fuel Location of fire in the compartment

What are fire patterns?(Ans- The physical manifestation of the affects of fire on materials.

What are the different types of fire patterns on the walls and ceiling?(Ans- Plume Generated patterns (often V shaped) Ventilation generated patterns Hot gas layer patterns (Line of demarcation)

What is spalling?(Ans- 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?(Ans- Pyrolized carbonaceous material

What is oxidation?(Ans- Physical change in appearance of a material resulting from the combination of oxygen.

What is alloying?(Ans- Mixing two metals heated then cooled to change their properties.Often melts at a lower temperature.

What is a clean burn?(Ans- When there was enough heat to burn away all carbon deposits (soot) on a surface leaving a "clean" surface. Occurs on non-combustible surfaces.

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What is soot?(Ans- Elemental carbon produced during incomplete combustion.

What is calcination?(Ans- 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?(Ans- Bulbs 25 watts or less pull away. Bulbs greater than 25 watts will expand towards the fire.

What causes heat shadowing?(Ans- An object blocking the travel of radiated heat.

What is a dead load?(Ans- The weight of things attached to the building, like flooring, cloumns, and roof coverings.

What is a live load?(Ans- A load that can move, like people, furniture, wind, water, and snow.

What is compartmentation?(Ans- Design features of a building that limit fire growth to the room of origin.

What are the five building construction types?(Ans- Type I - Fire resistant Type II - Non combustible Type III - Ordinary Type IV - Heavy timber Type V - Wood frame

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