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Heavy Equipment Operator Certification Exam Prep · Question

What is the primary danger associated with striking an active high-voltage underground electrical cable?

Striking an active high-voltage underground electrical cable can result in severe electric shock, arc flash, and potentially a fire or explosion, posing extreme

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Question: What is the primary danger associated with striking an active high-voltage underground electrical cable?

Answer options:

  • Interruption of electrical service to nearby residences.
  • Creation of a large crater from the immediate explosion. ✅ Severe electric shock, arc flash, and possible fire.
  • Damage to the excavator's hydraulic system.

Correct answer: Severe electric shock, arc flash, and possible fire.

Explanation: Striking an active high-voltage underground electrical cable can result in severe electric shock, arc flash, and potentially a fire or explosion, posing extreme danger to operators and bystanders. Service interruption is a consequence, but not the primary danger to life.

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