Crane Operator Certification Exam Prep · Question
A crane operator has made contact with an overhead powerline. The powerline is now arcing, and the ground around the crane appears to be energized. The operator successfully drove the crane clear of the contact point. What is the subsequent critical safety instruction for the operator and ground personnel?
Even if the crane has moved clear, the ground around the initial contact point (and possibly the crane itself) can remain energized. The operator must remain in
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Question: A crane operator has made contact with an overhead powerline. The powerline is now arcing, and the ground around the crane appears to be energized. The operator successfully drove the crane clear of the contact point. What is the subsequent critical safety instruction for the operator and ground personnel?
Answer options:
- The operator should immediately exit the cab and inspect the damage to the crane.
- Ground personnel should rush to the crane to assist the operator. ✅ The operator must stay in the cab until the power is confirmed de-energized, and ground personnel must maintain a safe distance.
- The operator should attempt to move the crane back to the original position to re-evaluate the safe zone.
Correct answer: The operator must stay in the cab until the power is confirmed de-energized, and ground personnel must maintain a safe distance.
Explanation: Even if the crane has moved clear, the ground around the initial contact point (and possibly the crane itself) can remain energized. The operator must remain in the cab until power is confirmed de-energized, and all ground personnel must maintain a safe distance to avoid step and touch potential. Exiting or approaching the crane before de-energization is highly dangerous.
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Question explanations
- According to most Canadian provincial regulations, who is ultimately responsible for the safe operation of a c
- A crane's rated capacity decreases as the load radius:
- What is the minimum number of full wraps of wire rope that must remain on a hoist drum when the hook is in its
- Before setting up a mobile crane, what is the most important factor to assess regarding ground conditions?
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