What is the 'D/d ratio' in rigging, and what does a higher ratio indicate?
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A
The ratio of wire rope drum or sheave diameter to rope diameter; a higher ratio means less wire fatigue and longer rope life
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B
The ratio of dead load to dynamic load on a rigging system
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C
The ratio of downward force to diagonal force in a sling angle calculation
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D
The ratio of drum diameter to hook diameter on a hoist