Crane Operator Certification Exam Prep · Question
A crane operator is setting up a mobile crane near overhead power lines. The voltage of the power lines is unknown. According to CSA Z150, what is the minimum safe working distance that must be maintained from these power lines?
According to CSA Z150, if the voltage of the overhead power lines is unknown, the minimum safe working distance that must be maintained is 4.5 m (15 ft). Distan
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Question: A crane operator is setting up a mobile crane near overhead power lines. The voltage of the power lines is unknown. According to CSA Z150, what is the minimum safe working distance that must be maintained from these power lines?
Answer options:
- 1.5 m
- 3.0 m ✅ 4.5 m
- 7.5 m
Correct answer: 4.5 m
Explanation: According to CSA Z150, if the voltage of the overhead power lines is unknown, the minimum safe working distance that must be maintained is 4.5 m (15 ft). Distances of 1.5 m and 3.0 m are insufficient for unknown voltages, and 7.5 m, while safer, is not the minimum specified by the standard for unknown voltage.
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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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