Multiple choice general knowledge

Which of the following fire extinguishers are suitable for fire caused by Electrical equipment and delicate machinery?

  1. Water

  2. Mechanical foam

  3. CO2

  4. Dry chemical powder
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dry chemical powder is suitable for electrical fires (Class C) as it doesn't conduct electricity and effectively smothers the fire. CO2 is also used but leaves no residue.

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