Crane Operator Certification Exam Prep · Question
While operating a mobile crane, the operator observes a utility worker approaching the crane, unaware that the boom is within the minimum approach distance (MAD) of an energized powerline. What is the operator's most critical action?
The most critical action is to immediately alert the worker to the danger and stop all crane movement to prevent accidental powerline contact. Sounding the horn
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Question: While operating a mobile crane, the operator observes a utility worker approaching the crane, unaware that the boom is within the minimum approach distance (MAD) of an energized powerline. What is the operator's most critical action?
Answer options: ✅ Sound the horn to alert the worker and stop crane movement.
- Shout warnings to the worker to stay back.
- Immediately move the boom away from the powerline.
- Exit the cab to personally warn the worker.
Correct answer: Sound the horn to alert the worker and stop crane movement.
Explanation: The most critical action is to immediately alert the worker to the danger and stop all crane movement to prevent accidental powerline contact. Sounding the horn is an effective way to get attention. Moving the boom might inadvertently bring it closer to the powerline or present other hazards, and exiting the cab could put the operator at risk.
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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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