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Directions: The following items consists of two statements; one labeled as ‘Assertion (A)’ and the other as ‘Reason (R)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:         

Codes:

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not a correct explanation of A

(c) A is true but R is false

(d) A is false but R is true

Assertion (A): In design of arms of pulley, in belt drive, the cross – section of the arm is elliptical with minor axis placed along the plane of rotation.             

Reason (R): Arms of a pulley in belt drive are subjected to complete reversal of stresses and is designed for bending in the plane of rotation.

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