Crane Operator Certification Exam Prep · Question
An operator must lift a load to a height of 30 metres (98 feet) at a radius of 15 metres (49 feet). What is the first step in determining the necessary boom length using a range diagram or load chart?
The range diagram helps visually determine the required boom length by finding the intersection of the desired operating radius and the required hook height. On
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Question: An operator must lift a load to a height of 30 metres (98 feet) at a radius of 15 metres (49 feet). What is the first step in determining the necessary boom length using a range diagram or load chart?
Answer options:
- Confirm the ground bearing pressure.
- Identify the crane's counterweight configuration. ✅ Locate the intersection of the desired radius and hook height on the diagram.
- Calculate the gross load weight.
Correct answer: Locate the intersection of the desired radius and hook height on the diagram.
Explanation: The range diagram helps visually determine the required boom length by finding the intersection of the desired operating radius and the required hook height. Once found, this will indicate the minimum boom length required.
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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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