Crane Operator Certification Exam Prep · Question
A rigging crew is preparing to lift a 2,000 kg load using two slings in a basket hitch, each set at a 45-degree angle to the horizontal. What is the approximate tension on each sling?
Tension (Sling) = (Load Weight / Number of Slings) / sin(Angle). For a 2,000 kg load with two slings at 45 degrees, tension per sling is (2000 / 2) / sin(45) =
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Question: A rigging crew is preparing to lift a 2,000 kg load using two slings in a basket hitch, each set at a 45-degree angle to the horizontal. What is the approximate tension on each sling?
Answer options: ✅ 1,414 kg
- 1,000 kg
- 2,000 kg
- 2,828 kg
Correct answer: 1,414 kg
Explanation: Tension (Sling) = (Load Weight / Number of Slings) / sin(Angle). For a 2,000 kg load with two slings at 45 degrees, tension per sling is (2000 / 2) / sin(45) = 1000 / 0.707 = 1414.7 kg. This demonstrates sling angle reduction increasing tension.
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- 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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