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Ontario Security Guard Licence Exam Prep · Question

A security guard is responding to a fire in a server room involving electrical wiring. This is classified as what type of fire?

A Class C fire involves energized electrical equipment (motors, transformers, appliances). Use of water on these fires is dangerous due to the risk of electrica

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Question: A security guard is responding to a fire in a server room involving electrical wiring. This is classified as what type of fire?

Answer options:

  • A fire involving flammable liquids like gasoline. ✅ A fire involving energized electrical equipment.
  • A fire involving combustible metals like magnesium.
  • A fire involving residential cooking oils and fats.

Correct answer: A fire involving energized electrical equipment.

Explanation: A Class C fire involves energized electrical equipment (motors, transformers, appliances). Use of water on these fires is dangerous due to the risk of electrical shock. Carbon Dioxide (CO2) or Dry Chemical extinguishers are used.

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