Which is an example of a Class A fire?

• A. Electrical Equipment
• B. Gasoline Spill
• C. Solvent
• D. Wood Burning

Answer: (D)

Fires are grouped by the type of fuel involved. Class A covers ordinary combustibles such as wood, paper, cloth, and other materials that typically leave ash when burned. Wood burning fits this category because it’s an everyday solid fuel that becomes ash as it burns, so it is extinguished using methods suited for ordinary combustibles (like cooling with water). The other options involve different fuel types: flames from electrical equipment are Class C (energized electrical fires), spills or vapors from gasoline and solvents are Class B (flammable liquids), and so they don’t belong in Class A.