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UPSC Civil Service Exam Questions - Engineering

Q1:

Due to horizontal pull of 60 kN at C, what is the force induced in the member AB?

A 0

B 40 kN

C 80 kN

D 100 kN

ANS:D - 100 kN

Ra = 80.
F(AB) * sinx = 80.
F(AB) = 80 * 5/4.
= 100.