Fire Investigator - Master for TCFP Full Test Bank/2025 TCFP Possible Questions and Answers

Fire Investigator - Master for TCFP Full Test Bank/2025 TCFP Possible Questions and Answers 3 phases of combustion - ANSWER-1) pre ignition phase no flame present Physical change- water is dried out by the fuel chemical change 2) Ignition phase a self sustaining flame is made 3) Combustion phase fuel is consumed by flames .A clean un-burned area is known as? - ANSWER-A protected area. .A natural gas explosion will damage what part of a structure? - ANSWER-The upper levels, natural gas is lighter than air and it rises. .Absence of CO2 in the blood stream of a body located in a fire scene may indicate what? - ANSWER-The person was dead prior to the fire. .Accidental Event - ANSWER-Those actions or inactions not intended or designed to cause, or allow to be caused, a fire or fire related incident. .AFIS - ANSWER-fingerprint data base .AHJ - ANSWER-Authority Having Jurisdiction .Air Entrainment - ANSWER-The process of air or gases being drawn into a fire, plume or jet .Alternating Current VS Direct Current - ANSWER-Alternating current - the electrons flow out from the source and then back to it, alternating directions. Direct current - electrons flow one way. .Alternating Current VS Direct Current - ANSWER-Alternating current - the electrons flow out from the source and then back to it, alternating directions. Direct current - electrons flow one way. .Aluminum melts at what temperature? - ANSWER-1220 Degrees .An over-pressurization of a container is an example of what type of an explosion? - ANSWER-Mechanical. .Anoxia - ANSWER-lack of oxygen .Any information obtained during an interview must be? - ANSWER-Evaluated and checked for accuracy. .Any information released to the public must be? - ANSWER-Accurate and reliable. .arson - ANSWER-the criminal act of deliberately setting fire to property .asphyxia - ANSWER-condition caused by insufficient intake of oxygen .At what temperature do light bulbs begin to swell or distort? - ANSWER-At 900 degrees for 10 minutes .Autoignition Temperature (AIT) - ANSWER-The lowest temperature at which a gas-air mixture will ignite in the absence of an ignition source. .Back Draft - ANSWER-a type of explosive ignition that occurs when a smoldering fire is exposed to a fresh supply of oxygen .Backdraft - ANSWER-The explosive burning of heated gases that occurs when oxygen is introduced into a compartment that has a high concentration of flammable gases and a depleted supply of oxygen due to an existing fire. .Beveling - ANSWER-A fire pattern that indicates fire direction on wood wall studs. It leans toward the direction of travel. .Blistering - ANSWER-usually means the victim was alive at time of fire .Boats that are powered by gasoline have similar fuel systems to cars. What are the two main gasoline fuel systems? - ANSWER-High pressure - fuel injected Lower pressure - carbuerated ALSO: Some boats are diesel, or even electric ONLY .Calcination - ANSWER-Process in which chemically bound water is driven out of gypsum by the heat of the fire. .Calcination of Gypsum - ANSWER-A fire effect realized in gypsum products, including wallboard, as a result of exposure to heat that drives off free and chemically bound water. .Carbon monoxide - ANSWER-240 times the affinity to hemoglobin .carbon monoxide - ANSWER-a colorless, odorless, and poisonous gas .Carbon monoxide poisining causes what color of the skin? - ANSWER-Cherry-pink .Carbon monoxide poisining causes what color of the skin? - ANSWER-Cherry-pink .Ceiling damage should be how much greater than floor damage? - ANSWER-70 to 80 % greater .Ceiling Jet - ANSWER-A relatively thin layer of flowing hot gases that develops under a horizontal surface as a result of plume impingement and the flowing of gas being forced to move horizontally .Char - ANSWER-Carbonaceous material that has been burned or pyrolyzed and has a blackened appearance. .Characteristics of evidence: - ANSWER-Physical state: Solid, liquid, gas Characteristics: Size, shape, weight Fragility: Will it disintegrate or break? Volatility: Will it evaporate? .Characteristics of evidence: - ANSWER-Physical state: Solid, liquid, gas Characteristics: Size, shape, weight Fragility: Will it disintegrate or break? Volatility: Will it evaporate? .Checkering of Glass - ANSWER-small chips of glass that pop of hot glass when hit with cold water .Cigarettes - ANSWER-550 degrees up to 1350 degrees -1 1/2 hours to produce flame .Class A Combustible - ANSWER-Solid Materials .Class B - ANSWER-Flammable Liquids .Class C - ANSWER-Flammable Gases .Class D - ANSWER-Combustible metals .Class K - ANSWER-cooking oils .class of print, ridge count, ridge characteristic - ANSWER-what do examiners look for in prints .CO skin - ANSWER-pink or cherry red .CO2 bond to hemoglobin how much faster than O2? - ANSWER-210 time faster. .Cognitive testing - ANSWER-The use of a person's thinking skills and judgement in order to evaluate the empirical date and challenged the conclusions of the final hypothesis .Color For Investigation - ANSWER-Smoke and Flame Color Is not usually used for fire investigation .Combustible Liquid - ANSWER-Liquid having a flash point at or above 100°F (37.8°C) and below 200°F (93.3°C). .Combustion - ANSWER-A chemical process of oxidation that occurs at a rate fast enough to produce heat and usually light in the form of either a glow or flames. .combustion - ANSWER-a rapid chemical reaction that produces heat and light .Computer Driven Fire Models - ANSWER-Helps you evaluate witness statements .Concentration Of Oxygen For Fire - ANSWER-Need 15 to 16 percent .Conduction - ANSWER-Heat transfer through solid material .Conduction - ANSWER-Heat transfer to another body or within a body by direct contact. .Conduction - ANSWER-transfer of kinetic energy by contact between vibrating molecules. Travels from high KE (hot) to low KE (cold) .Convection - ANSWER-Heat movement through liquid or gas (air) .Convection - ANSWER-Heat transfer by circulation within a medium such as a gas or liquid. .convection - ANSWER-transfer of energy by the movement of fluids (gases or liquids)