Certified Fire Investigator Exam With Complete Solutions 2024.

The determination of the area of origin of a fire involves evaluation and analysis of information derived from one or more of four elements. What are these four elements as outlined in Chapter 17 of NFPA 921? {Ans: Witness Information Fire Patterns Arc Mapping Fire Dynamics}What is an "Incendiary Fire?" {Ans: A fire intentionally ignited in an area or under circumstances where and when there should not be a fire}What Does the Size (Geometry) of a Compartment have to do with the onset of Flashover? {Ans: Bigger Compartments Can Delay or Prevent Flashover Conditions}What is Pyrolysis? {Ans: The thermal or chemical decomposition of fuel. Heat energy is absorbed by the fuel and gives off flammable gases.}What are common electrical wiring colors? {Ans: Black- Hot White- Neutral Green (or Bare)- Grounding Conductor All other colors are additional "Hot" wires}What is Char? {Ans: Carbonaceous material that has been burned or pyrolyzed and has a blackened appearance}