Crane Operator Certification Exam Prep · Question
You are making a lift using a two-leg bridle hitch. The total load weight is 10,000 kg (22,000 lb). If the included angle between the sling legs is 60 degrees, what is the approximate tension on each sling leg?
The formula for tension in a two-leg bridle hitch is (Load Weight / Number of Legs) / cos (angle from vertical). With a 60-degree included angle, the angle from
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Question: You are making a lift using a two-leg bridle hitch. The total load weight is 10,000 kg (22,000 lb). If the included angle between the sling legs is 60 degrees, what is the approximate tension on each sling leg?
Answer options:
- 5,000 kg (11,000 lb) ✅ 5,770 kg (12,720 lb)
- 10,000 kg (22,000 lb)
- 8,660 kg (19,090 lb)
Correct answer: 5,770 kg (12,720 lb)
Explanation: The formula for tension in a two-leg bridle hitch is (Load Weight / Number of Legs) / cos (angle from vertical). With a 60-degree included angle, the angle from vertical is 30 degrees. So, (10,000 kg / 2) / cos(30°) = 5,000 kg / 0.866 = 5,770 kg.
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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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