A square key of side d/4 is to be fitted on a shaft of diameter d and in the hub of a pulley. If the material of the key and shaft is same and the two are to be equally strong in shear, what is the length of the key?
A. π d / 2
B. 2π d / 3
C. 3π d / 4
D. 4π d / 5
Answer:A
A square key of side d/4 is to be fitted on a shaft of diameter d and in the hub of a pulley. If the material of the key and shaft is same and the two are to be equally strong in shear, what is the length of the key?
A. π d / 2 B. 2π d / 3 C. 3π d / 4 D. 4π d / 5