Fire Investigator - master for TCFP test Is NFPA 921 a guide or a standard? - CORRECT ANSWER It is the Guide for Fire and Explosion Investigations What are the six steps of the scientific method? - CORRECT ANSWER Recognize the need Define the problem Collect the data Analyze the data Develop a hypothesis Test the hypothesis What step of the scientific method is inductive reasoning? - CORRECT ANSWER Analyze the data 1 / 4
What step of the scientific method is deductive reasoning? - CORRECT ANSWER Test the hypothesis What are the four parts of the fire tetrahedron? - CORRECT ANSWER Fuel (reducing agent) Heat Oxidizing agent Uninhibited chemical chain reaction What kind of reaction absorbs energy, an endothermic or an exothermic reaction? - CORRECT ANSWER Endothermic What is heat transfer by direct contact called? - CORRECT ANSWER Conduction 2 / 4
What is heat transfer by gas flow / air movement called? - CORRECT ANSWER Convection What is heat transfer by microwave energy called? - CORRECT ANSWER Radiation What is a fuel controlled fire? - CORRECT ANSWER A fire that is limited by the amount of combustibles.What is a ventilation controlled fire? - CORRECT ANSWER A fire that is limited by the amount of oxygen.What are the stages of fire growth? - CORRECT ANSWER Ignition Growth Flashover Fully Developed Decay 3 / 4
What is a flashover? - CORRECT ANSWER The transition phase from growth to fully developed, where all surfaces reach ignition temperature almost simultaneously.What is ignition of the underside of the hot gas layer called? - CORRECT ANSWER Flameover or rollover What factors influence flashover conditions? - CORRECT ANSWER Size of the compartment Height of ceiling Ventilation Amount of fuel Layout of fuel Location of fire in the compartment
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