In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
A. Increase key length
B. Increase key depth
C. Increase key width
D. Double all the dimensions
Answer: Option C
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As per the answer given in the book of RS Khurmi and JK Gupta, the answer is option A. (Page: 581). I need help in rectifying the answer.