Crane Operator Certification Exam Prep · Question
In a tandem lift, one crane's hoist line inadvertently lifts faster than the other. What is the immediate consequence on the load and the cranes?
If one crane lifts faster, it will begin to take on a disproportionately larger share of the load, potentially overloading that crane and causing instability or
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Question: In a tandem lift, one crane's hoist line inadvertently lifts faster than the other. What is the immediate consequence on the load and the cranes?
Answer options: ✅ The crane lifting faster will experience an increased load, potentially exceeding its capacity.
- The load will safely pivot, re-distributing weight evenly to the slower crane.
- Both cranes will automatically adjust their hoist speeds to re-synchronize.
- The faster lifting crane will immediately stall due to a safety lockout.
Correct answer: The crane lifting faster will experience an increased load, potentially exceeding its capacity.
Explanation: If one crane lifts faster, it will begin to take on a disproportionately larger share of the load, potentially overloading that crane and causing instability or structural failure, as it effectively pivot-points the load, increasing stresses.
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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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