Crane Operator Certification Exam Prep · Question
A crane is set up with a boom length of 40 metres (131 feet) at a boom angle of 60 degrees. The load chart requires the operator to use the horizontal distance from the centre of rotation to the hook. This distance is known as the:
The operating radius is defined as the horizontal distance from the crane's centre of rotation to the plumb line of the hook or the centre of the load. This is
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Question: A crane is set up with a boom length of 40 metres (131 feet) at a boom angle of 60 degrees. The load chart requires the operator to use the horizontal distance from the centre of rotation to the hook. This distance is known as the:
Answer options:
- Boom reach
- Tip height ✅ Operating radius
- Clearance distance
Correct answer: Operating radius
Explanation: The operating radius is defined as the horizontal distance from the crane's centre of rotation to the plumb line of the hook or the centre of the load. This is the crucial dimension used in conjunction with boom length and configuration to determine capacities on a load chart.
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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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