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UPSC Civil Service Exam Questions - Engineering

Q1:

In the cross-section of a rectangular beam, what is the ratio of the average shear stress to the maximum shear stress ?

A 3/2

B 2/3

C 4/3

D 3/4

ANS:B - 2/3

Answer. B is right because of max Shear stress/avg Shear stress= 3/2.

Here, the question asking avg/max. So, the answer B is right.