🔍 Key Concepts

• Fire classes and typical materials (A, B, C, D) • Difference between ordinary combustibles, flammable liquids, electrical fires, and metal fires • Where burning wood is usually found (e.g., campfire, paper, cloth)

💭 Think About

• First match each fire class (A, B, C, D) with its typical fuel type in your mind. • Ask yourself: burning wood belongs with which group—ordinary solid materials, flammable liquids/gases, energized electrical equipment, or combustible metals? • Think about what type of extinguisher label you would look for if a pile of wooden pallets caught fire.

✅ Before You Answer

• Verify which class is for ordinary combustible materials like paper, cloth, trash, and wood. • Confirm that flammable liquids and gases (like gasoline or oil) are a different class than wood. • Confirm that electrical and metal fires are special classes that do NOT normally include wood.