Fire Investigator - master for TCFP test Questions & Answers Already Passed!!

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 jetAlternating 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 oxygenBackdraft - 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.