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UPSC Civil Service Exam Questions

Q1:
In the truss shown in the given figure, the forces in the members AB and BC will be respectively (plus denotes tension)

A zero and zero

B - W/cos 60° and + W tan 60°

C - W/cos 60° and zero

D zero and + W tan 60°

ANS:A - zero and zero

Consider B support, its roller support contains. It does not resist any loads because if given a load to the roller its move away from WRT force.



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