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): For similar materials having the same maximum permissible tensile, V – belt transmits more power than flat belt with same velocity ratio and centre distance.
Reason (R): As two sides of V – belt are in contact with side faces of pulley in belt drive are subjected to complete reversal of stresses and is designed for bending in the plane of rotation.