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Question

Difficulty: EasySafety Procedures and Environmental Controls

An IT technician working in a server room notices smoke and small flames originating from an active electrical power distribution unit inside a rack. Which class of fire extinguisher should be used to safely suppress this electrical fire?

  1. Class CAnswer
  2. B
    Class A
  3. C
    Class B
  4. D
    Class D

Answer

Class C fire extinguishers are specifically designated for fires involving energized electrical equipment.
Class C fire extinguishers use non-conductive agents (such as carbon dioxide or dry chemical powders) specifically formulated to safely extinguish fires involving live electrical equipment without electrocuting the operator.

Step-by-Step Solution

1
Identify the source and type of fire.
The fire originates from an active electrical power distribution unit, classifying it as an energized electrical fire.
Selecting the correct suppression method depends on the fuel source and presence of electrical current.
2
Select the appropriate fire extinguisher rating.
Class C extinguishers utilize non-conductive extinguishing agents safe for live electrical hardware.
Using conductive agents on energized equipment creates a dangerous risk of electrical shock.

Key Concept

Fire Safety Classes and Electrical Fire Suppression
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Topics

Safety Procedures and Environmental Controls

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