Crane Operator Certification Exam Prep · Question
During the setup of a mobile crane, Ontario Regulation 213/91 (Construction Projects) requires what specific action regarding electrical power lines?
Ontario Regulation 213/91, Section 188(4), requires that if it's not practical to keep equipment a safe distance from power lines, the lines must be de-energize
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Question: During the setup of a mobile crane, Ontario Regulation 213/91 (Construction Projects) requires what specific action regarding electrical power lines?
Answer options:
- The crane must always maintain a minimum clearance of 3.0 m (10 ft) from power lines, regardless of voltage. ✅ The power lines must be de-energized or isolated if the crane must operate closer than the minimum safe limits.
- A dedicated spotter must be present whenever operating within 15 m (50 ft) of power lines.
- Only non-conductive slings should be used when working near power lines.
Correct answer: The power lines must be de-energized or isolated if the crane must operate closer than the minimum safe limits.
Explanation: Ontario Regulation 213/91, Section 188(4), requires that if it's not practical to keep equipment a safe distance from power lines, the lines must be de-energized, isolated, or a protective physical barrier installed to prevent contact.
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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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