Basic Firefighting Questions and Correct Answers

Four basic components of the fire tetrahedron. Ans Fuel Oxygen Uninhibited Chemical Chain Reaction Heat How do you stop a fire? Ans Remove one of the parts of the fire tetrahedron. What is flash point? Ans Lowest temperature that flammable fumes/vapors are given off from a flammable substance. What is Fire point? Ans Temperature where something will continue to burn after being lit. Usually a few degrees higher than flash point. What is spontaneous combustion? Ans Certain types of materials, heat can cause fast oxidation resulting in a fire. Auto Ignition/Self Ignition Point Ans Lowest temperature where a substance will give off vapors that burn without the application of a spark or flame. Oxidation Ans Chemical reaction where an oxygen combines with a burning substance. Flammable/Explosive Range Ans Flammable vapor to air ratio where the vapor will burn/explode when ignited. Extinguishing Agents: Water Ans Cooling agent, most effective when it becomes a steam and carries away heat, cooling the surface. Used on Class D & A fires. Extinguishing Agents: CO