Crane Operator Certification Exam Prep · Question
A crane operator observes that the load radius will significantly increase as the load is hoisted due to boom deflection. How should this be accounted for when reviewing the load chart?
Boom deflection causes the actual load radius to increase once the load is suspended. The operator must refer to the load chart based on the anticipated maximum
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Question: A crane operator observes that the load radius will significantly increase as the load is hoisted due to boom deflection. How should this be accounted for when reviewing the load chart?
Answer options:
- Use the initial radius before hoisting to determine capacity. ✅ Consult the load chart based on the maximum anticipated radius with the load suspended.
- Add a 10% safety factor to the indicated capacity for boom deflection.
- Disregard boom deflection, as it is accounted for in the manufacturer's charts.
Correct answer: Consult the load chart based on the maximum anticipated radius with the load suspended.
Explanation: Boom deflection causes the actual load radius to increase once the load is suspended. The operator must refer to the load chart based on the anticipated maximum radius that will occur during the lift to ensure adequate capacity throughout the operation.
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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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