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Heavy Duty Equipment Technician Red Seal Exam Prep · Question

Under what condition should a Lockout/Tagout (LOTO) procedure be applied to heavy machinery?

LOTO procedures are mandatory when servicing, maintaining, or repairing equipment to prevent accidental startup and protect workers from stored energy.

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Question: Under what condition should a Lockout/Tagout (LOTO) procedure be applied to heavy machinery?

Answer options:

  • During routine operational checks. ✅ When performing scheduled maintenance, repairs, or servicing.
  • Before refuelling the equipment engine.
  • Whenever an operator leaves the equipment unattended for a short break.

Correct answer: When performing scheduled maintenance, repairs, or servicing.

Explanation: LOTO procedures are mandatory when servicing, maintaining, or repairing equipment to prevent accidental startup and protect workers from stored energy.

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