Which of the following is NOT the cause of electric fire?

This question was previously asked in
ALP CBT 2 Fitter Previous Paper: Held on 23 Jan 2019 Shift 2
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  1. Open doors 
  2. Electric short circuit 
  3. Loose connection 
  4. Over loading on wires

Answer (Detailed Solution Below)

Option 1 : Open doors 
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Detailed Solution

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Explanation:

  • Loose connections, wrongly rated fuses, overload circuits i.e. misuse or negligence in electrical equipment, cause overheating which may, in turn, lead to a fire. 
  • Class C type fire extinguishers can be used for electrical fires. While the extinguishment of an electrical fire,
    • If possible, remove the source of energy by unplugging or disconnecting the electrical equipment
    • Use carbon dioxide, ordinary (BC rated) dry chemical, multi-purpose dry chemical and halon fire extinguishers
    • Do not use water on any energized electrical equipment

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