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UPSC Civil Service Exam Questions - Engineering

Q1:

The reaction at B due to the load as shown the given figure is

A

B

C 2 W

D 3 W

ANS:A -

Mc = 0
Rdx5 + Wx4 = 0
Rd = 4W/8.

Taking moment about A.
Rbx3 + 4W/5 * 10 = 9W.
Rb = W/3.