A ______ fire extinguisher should be used on an electrical fire.

A ______ fire extinguisher should be used on an electrical fire.

• A. Class A
• B. Class B
• C. Class C
• D. Class D

Answer: (C)

Electrical fires need an extinguisher that won’t conduct electricity. A Class C extinguisher is designed for energized electrical equipment, using non-conductive agents like dry chemical powders or CO2. Water-based extinguishers are dangerous on live electrical fires because water can conduct electricity and cause a shock or spread the current. The other classes cover ordinary combustibles, flammable liquids, and metals, which don’t apply to electrical fires. So the best choice is the extinguisher labeled for electrical fires.

Electrical fires need an extinguisher that won’t conduct electricity. A Class C extinguisher is designed for energized electrical equipment, using non-conductive agents like dry chemical powders or CO2. Water-based extinguishers are dangerous on live electrical fires because water can conduct electricity and cause a shock or spread the current. The other classes cover ordinary combustibles, flammable liquids, and metals, which don’t apply to electrical fires. So the best choice is the extinguisher labeled for electrical fires.