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UPSC Civil Service Exam Questions - Engineering

Q1:

A propped cantilever of span 4 m is fixed at A and propped at B. The beam carries a u.d.l. of 1 t/m over the entire span. The reaction at B is

A 5/2 t

B 2 t

C 1 t

D 3/2 t

ANS:D - 3/2 t

Reaction at the Propped end is;
Rb= 3WL/8.

Given data: L=4m.
W = 1t/m.

Rb = 3x1x4/8,
= 12/8,
= 3/2.

So, the given answer is correct.