Two pulleys of diameters d1 and d2 and at distance x apart are connec – McqOptions

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1.	Two pulleys of diameters d1 and d2 and at distance x apart are connected by means of an open belt drive. The length of the belt is
A.	π /2 (d1 + d2) 2x + (d1 + d2)2/4x
B.	π /2 (d1 – d2) 2x + (d1 – d2)2/4x
C.	π /2 (d1 + d2) 2x + (d1 – d2)2/4x
D.	π /2 (d1 – d2) 2x + (d1 + d2)2/4x
Answer» D. π /2 (d1 – d2) 2x + (d1 + d2)2/4x

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