A fire extinguisher should be used on a computer fire on which class?

A fire extinguisher should be used on a computer fire on which class?

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

Answer: (D)

Fires involving electrical equipment require an extinguisher rated for electrical fires. Water or other conductive agents pose a shock risk and can spread damage when electricity is involved, so the extinguisher chosen must be non-conductive and safe for energized circuits. For a computer fire, the option intended for electrical fires is the best match, because it uses a non-conductive extinguishing agent that dampens the flame without risking shock to the user or further damage to the equipment. The other options target different fuel types—ordinary combustibles, flammable liquids, or metals—and aren’t appropriate for electrical fires, which is why they’re not the right choice in this scenario.

Fires involving electrical equipment require an extinguisher rated for electrical fires. Water or other conductive agents pose a shock risk and can spread damage when electricity is involved, so the extinguisher chosen must be non-conductive and safe for energized circuits. For a computer fire, the option intended for electrical fires is the best match, because it uses a non-conductive extinguishing agent that dampens the flame without risking shock to the user or further damage to the equipment. The other options target different fuel types—ordinary combustibles, flammable liquids, or metals—and aren’t appropriate for electrical fires, which is why they’re not the right choice in this scenario.