Firefighter 1 Chapter 4 test Fire Dynamics

Firefighter 1 Chapter 4 test Fire Dynamics Fires involve a heat producing chemical reaction between fuel and: - CORRECT ANSWER an oxidizer When a substance changes from one type of matter to another such as two or more substances combining to form compounds, the substance undergoes a: - CORRECT ANSWER Chemical reaction Which statement about energy and combustion is accurate? - CORRECT 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? - CORRECT ANSWER Chemical chain reaction What occurs when a mixture of fuel and oxygen encounter an external heat source with sufficient heat or thermal energy to start the combustion reaction? - CORRECT 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 - CORRECT ANSWER autoignition temperature (AIT)