Class Alpha fires involve which materials?

Class Alpha fires involve which materials?

• A. Flammable liquids
• B. Common combustibles such as wood, cloth, paper, rubber, and certain plastics
• C. Electrical equipment
• D. Cooking oils

Answer: (B)

Fires that involve ordinary combustibles burn materials that leave ash when burned. This includes common items like wood, paper, cloth, rubber, and many plastics. That description matches what Class A fires are, so it’s the best choice. Other options belong to different fire classes: flammable liquids are Class B, electrical equipment is Class C, and cooking oils are Class K in many systems. Knowing this helps you choose the right extinguisher and approach—for Class A, cooling with water or using an extinguisher rated for ordinary combustibles.

Fires that involve ordinary combustibles burn materials that leave ash when burned. This includes common items like wood, paper, cloth, rubber, and many plastics. That description matches what Class A fires are, so it’s the best choice. Other options belong to different fire classes: flammable liquids are Class B, electrical equipment is Class C, and cooking oils are Class K in many systems. Knowing this helps you choose the right extinguisher and approach—for Class A, cooling with water or using an extinguisher rated for ordinary combustibles.