π Key Concepts
β’ Fire classes (A, B, C, D, K) and what type of fuel each covers
β’ Behavior of flammable and combustible liquids when water is applied
β’ How foam, COβ, dry chemical, and water act to extinguish a fire (cooling, smothering, interrupting chemical chain reaction)
π Think About
β’ First decide what class of fire burning liquid paint belongs to, based on its fuel type
β’ For that class of fire, consider which agents are normally recommended and which agents may make the situation worse
β’ Think about how each agent affects a spreading liquid surface fire: does it spread the liquid, float on it, or smother it?
β
Before You Answer
β’ Verify which agent can spread flammable liquids instead of extinguishing them
β’ Check which agents are specifically rated for Class B (flammable liquid) fires
β’ Be sure you know which agents work mainly by smothering the surface versus just cooling with water