UPSC Civil Service Exam Questions

Q1:
Four bolts share the load P as shown in the figure. The shearc strength of bolt is 30 kN and tension strength of bolt is 40 kN. Which one of the following is the value of P ?

A 96 kN

B 105 kN

C 117 kN

D 134 kN

ANS:D - 134 kN

P tensile/40 +P compression /30 =1.4
P tensile = psin45 /4
P compression= p cos 45/ 4
Putting these value in above eqn then get
P = 134



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