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UPSC Civil Service Exam Questions - Engineering

Q1:

The frame shown is redundant to

A single degree

B two degree

C three degrees

D four degrees

ANS:A - single degree

Ds = m+r-2j.

M=member (6).
R =reaction(3).
J=joints( 4).
-> ds= (6+3)-2(4).
-> ds = 1.

Option A is correct.