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UPSC Civil Service Exam Questions - Engineering

Q1:

A fixed beam made of steel is shown in the figure. At collapse, the value of load P will be equal to :

A 10 Mp/L

B 12 Mp/L

C 16 Mp/L

D 20 Mp/L

ANS:A - 10 Mp/L

For collapse, using the virtual method.

MPθ+2MPθ+ MP(2θ) = PLθ/2.
PLθ= 10MPθ.
P = 10 MP/L.