🔍 Key Concepts

• Classes of fire (A, B, C, D) and what each class normally involves • The difference between ordinary combustibles, flammable liquids, electrical equipment, and combustible metals • Which class of fire requires special dry powders rather than water or foam

💭 Think About

• First, match each choice (wood, oil, electrical equipment, magnesium) to the correct general fire class you already know (A, B, C, or D). • Ask yourself: which one of these is a metal that can burn very intensely and needs special extinguishing agents? • Think about which class is specifically used for combustible metals, not for liquids, wood, or energized electrical equipment.

✅ Before You Answer

• Be sure you remember that Class A is ordinary combustibles like wood, paper, cloth. • Verify that Class B is flammable liquids and Class C is energized electrical equipment. • Identify which option is a combustible metal, since that corresponds with Class D.