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UPSC Civil Service Exam Questions - Engineering

Q1:

A propped cantilever of span 'L' is subjected to a concentrated load at mid-span. If Mp is plastic moment capacity of the beam, then the value of the collapse load will be

A

B

C

D

ANS:C -

W(l/2)θ= Mp * θ + Mp * (θ + θ).
W(l/2)θ = 3 Mp * θ.
W = 6 Mp/l.