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Mr. Dubey • 52.77K Points
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Q. The main difference between rigid and flexible coupling for shafts transmitting power is

(A) the number of coupling bolts are more in flexible coupling than in rigid coupling
(B) a flexible element is inserted around coupling bolts in one of the flanges
(C) There is a protective flange over bolts in the case of flexible coupling
(D) none of the above
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