Crane Operator Certification Exam Prep · Question
During a tower crane 'jumping' operation (adding mast sections), what is primarily being increased?
Jumping (or climbing) a tower crane involves adding or removing mast sections to change the crane's operational height, specifically the height under hook, to m
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Question: During a tower crane 'jumping' operation (adding mast sections), what is primarily being increased?
Answer options:
- The crane's lifting capacity
- The crane's operating radius ✅ The crane's height under hook
- The crane's counterweight
Correct answer: The crane's height under hook
Explanation: Jumping (or climbing) a tower crane involves adding or removing mast sections to change the crane's operational height, specifically the height under hook, to match the building's progress.
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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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