Fire Investigator 2nd edition with 138 Questions and answers Newest RATED A+

Fire Investigator 2nd edition with 138
Questions and answers Newest RATED A+
ANSI Standard Z89.1 - Correct Answers Standard for industrial head protection.
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II! The particular toxic gases that may be found at fire and explosion sites vary according to four common
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II! factors. - Correct Answers Nature of combustible.
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Rate of heating. II! II!




Temperature of the involved gases. II! II! II! II!




Oxygen concentration. II!




II! The organic vapor/acid gas cartridge is effective for approximately? - Correct Answers 8 to 10 hours of
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II! continuous use. II!




II! Placards are required on containers that are how big? - Correct Answers 640 cubic feet or larger.
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II! 704 placard colors - Correct Answers Health Blue
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Flammability Red II!




Instability Yellow II!




II! At an explosion scene, the perimeter should be established how far? - Correct Answers A minimum of
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II! 1.5 times the distance of the farthest piece of debris found.
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II! NFPA 54 - Correct Answers National Fuel Gas Code
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II! Combustion - Correct Answers A rapid and self-sustaining chemical process that yields heat and usually
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II! light.



II! Complete combustion of methane in air produces? - Correct Answers Heat, light, water vapor, and
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II! carbon dioxide. II!

, II! Hydrogen Cyanide (HCN) - Correct Answers Produced in the combustion of materials containing
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II! nitrogen. HCN acts to prevent the body from using oxygen at the cellular level. Polyurethane foam.
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II! Joule - Correct Answers Equal to 1 Newton over a distance of 1 meter.
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II! A BTU is equal to - Correct Answers 1054 joules
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II! The rate at which most chemical reactions occur. - Correct Answers Doubles with each 18 deg F (10 C)
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II! increase in the temperature of the reacting materials. II! II! II! II! II! II! II!




II! Resistance heating - Correct Answers When electric current flows through a conductor, heat is
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II! produced.



II! Over current or Overload - Correct Answers When the current flowing through a conductor exceeds its
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II! design limits, it may overheat and present an ignition hazard.
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II! Copper will conduct heat how much faster than steel - Correct Answers More than seven times more
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II! readily.



II! Steel is how much more thermally conductive than concrete? - Correct Answers Nearly forty times more
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II! thermally conductive. II!




II! Radiant Temperature Difference - Correct Answers As the temperature of the heat source increases, the
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II! radiant energy increases by a factor to the fourth power. Doubling the temperature increases radiant heat
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II! by a factor of sixteen.
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II! Liquid fuels that vaporize sufficiently to burn at temperatures under __________ present a significantly
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II! flammable hazard. - Correct Answers 100 F (38 C) II! II! II! II! II! II! II! II! II! II! II!




II! Solubility - Correct Answers Degree to which a solid, liquid, or gas dissolves in a solvent (usually water).
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