Crane Operator Certification Exam Prep · Question
A crane is positioned with its boom slewing from directly over the 'Over Front' quadrant to the 'Over Side' quadrant. If the load chart indicates 'Over Front' capacity of 20,000 kg and 'Over Side' capacity of 15,000 kg for the given radius and boom length, what must the operator do when slewing with a 14,000 kg load?
When slewing with a load, the operator must always respect the crane's capacity for the quadrant the boom is currently operating in. Since the 'Over Side' capac
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Question: A crane is positioned with its boom slewing from directly over the 'Over Front' quadrant to the 'Over Side' quadrant. If the load chart indicates 'Over Front' capacity of 20,000 kg and 'Over Side' capacity of 15,000 kg for the given radius and boom length, what must the operator do when slewing with a 14,000 kg load?
Answer options: ✅ Ensure the load does not exceed 15,000 kg at any point during the slew.
- Maintain the 20,000 kg capacity as long as the load is within the 'Over Front' sector.
- Stop the lift and re-evaluate if the capacity changes.
- The charts for different quadrants only apply to the initial setup, not during slewing.
Correct answer: Ensure the load does not exceed 15,000 kg at any point during the slew.
Explanation: When slewing with a load, the operator must always respect the crane's capacity for the quadrant the boom is currently operating in. Since the 'Over Side' capacity is 15,000 kg, the 14,000 kg load is permissible through both quadrants, but the 15,000 kg 'Over Side' capacity is the limiting factor for the entire slew.
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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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