CFEI Study Guide Latest Update | 2024/2025 | Rated A+

CFEI Study Guide Latest Update | 2024/2025 | Rated A+ "V" Pattern The geometric shape of the pattern. Accelerant Can be any material to spread fire; usually gasoline. Administrative Review An administrative review is one typically carried out within an organization to ensure that the investigator's work product meets the organization's quality assurance requirements. An administrative reviewer will determine whether all of the steps outlined in an organization's procedure manual, or required by agency policy, have been followed and whether all of the appropriate documentation is present in the file, and may check for typographical or grammatical errors. Arc A high-temperature luminous electric discharge across a gap or through a medium such as charred insulation. Arson The crime of maliciously and intentionally, or recklessly, starting a fire or causing an explosion. Backdraft A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion Boiling Point Temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid and the liquid changes into a vapor. Burning Point The lowest temperature at which a volatile oil in an open vessel will continue to burn when ignited by a flame held close to its surface; used to test safety of kerosene and other illuminating oils. Calcination A fire effect realized in gypsum products, including wallboard, as a result of exposure to heat that drives off free and chemically bound water Cause The circumstances, conditions, or agencies that brought about or resulted in the fire or explosion incident, damage to property resulting from the fire or explosion incident, or bodily injury or loss of life resulting from the fire or explosion incident. Ceiling Jet Obstruction to plume at ceiling level creates ceiling jets. Clean Burn A distinct and visible fire effect generally apparent on non-combustible surfaces after combustible layers (soot, paper, paint)have burned away Combustible Liquid Flash Point @ or above 100°F Combustion 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 flame Combustion 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 flame. Combustion Combustion may continue with available oxygen concentrations lower than 1 percent. Competent Ignition Source An ignition source that has sufficient energy and is capable of transferring that energy to the fuel long enough to raise the fuel to its ignition temperature. Conduction Heat transfer to another body or within a body by direct contact. Conduction Heat transfer to another body or within a body by DIRECT contact. Conduction Heat Transfer Conduction is the form of heat transfer that takes place within solids when one portion of an object is heated. Energy is transferred from the heated area to the unheated area at a rate dependent on the difference in temperature and the physical properties of the material. Confirmation Bias Different hypotheses may be compatible with the same data. When using the scientific method, testing of hypotheses should be designed to disprove the hypothesis (falsification of the hypothesis). Confirmation bias occurs when the investigator instead tries to prove the hypothesis. This can result in failure to consider alternate hypotheses, or prematurely discounting seemingly contradictory data without an appropriate assessment. A hypothesis can be said to be valid only when rigorous testing has failed to disprove the hypothesis. Convection Heat transfer by circulation within a medium such as