UPSC Civil Service Exam Questions - Engineering

Q1:

An element is subjected to stress as given in figure. For this state of stress, what is the maximum shear stress ?

A 2.5 MPa

B 5 MPa

C 10 MPa

D 15 MPa

ANS:B - 5 MPa

Shear max = 6x-6y/2,
20-10/2 = 5.