OSH Security Practice Test

What type of fire extinguisher is used on an electrical fire?

1. Class A

2. Class B

3. Class C

4. Class D

The correct answer is: Class C

The type of fire extinguisher used on an electrical fire is indeed Class C. Class C fire extinguishers are specifically designed to address fires involving energized electrical equipment. They utilize non-conductive agents that can effectively suppress flames without the risk of electric shock, making them safe for use on live electrical sources. Class A extinguishers are meant for ordinary combustibles like wood and paper, while Class B extinguishers are suitable for flammable liquids such as gasoline and oil. Class D extinguishers are used for fires involving combustible metals, and they contain agents specifically designed to handle those unique types of flare-ups. Therefore, using a Class C extinguisher on an electrical fire is critical to ensuring safety both for the individual using the extinguisher and for effectively extinguishing the fire.