Crane Operator Certification Exam Prep · Question
An operator is preparing to lift a pre-fabricated concrete panel weighing 8,500 kg. The crane's load chart, for the current boom length and configuration, shows capacities of 9,000 kg at 14 metres, and 8,000 kg at 16 metres. What is the maximum allowable operating radius for this lift?
The operator must select a radius where the chart capacity meets or exceeds the load. At 14 metres, the capacity is 9,000 kg, which is greater than the 8,500 kg
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Question: An operator is preparing to lift a pre-fabricated concrete panel weighing 8,500 kg. The crane's load chart, for the current boom length and configuration, shows capacities of 9,000 kg at 14 metres, and 8,000 kg at 16 metres. What is the maximum allowable operating radius for this lift?
Answer options: ✅ 14 metres
- 16 metres
- 15 metres
- 13 metres
Correct answer: 14 metres
Explanation: The operator must select a radius where the chart capacity meets or exceeds the load. At 14 metres, the capacity is 9,000 kg, which is greater than the 8,500 kg load. At 16 metres, the capacity drops to 8,000 kg, which is insufficient. The maximum allowable operating radius is therefore 14 metres.
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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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