IFSTA/Essentials of Fire Fighting 7th Addition - Chapter 4

IFSTA/Essentials of Fire Fighting 7th Addition - Chapter 4 Fires involve a heat producing chemical reaction between fuel and: - ANSWER An oxidizer When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: - ANSWER Chemical reaction Which statement about energy and combustion is accurate? - ANSWER A fuels potential energy releases during combustion and converts to kinetic energy Which element of the fire tetrahedron is included to explain flaming (gas-phase) combustion? - ANSWER Chemical chain reaction What occurs when a mixture of fuel and oxygen and counter and external heat source with sufficient heat or thermal energy to start the combustion reaction? - ANSWER Piloted ignition The minimum temperature at which a fuel in the air must be heated in order to start self-sustained combustion is known as the: - ANSWER Autoignition temperature (AIT) What causes flaming combustion to occur? - ANSWER A gaseous fuel mixes with an adequate amount of oxygen and heats to ignition temperature