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UPSC Civil Service Exam Questions - Engineering

Q1:

Given that for a soil deposit,
K0 = earth pressure coefficient at rest,
Ka = active earth pressure coefficient,
Kp = passive earth pressure coefficient and
u = Poisson's ratio, the value of (1 - μ) is given by

A Ka/Kp

B K0/Ka

C KP/Ka

D 1/K0

ANS:D - 1/K0

Ko=earth pressure at rest condition.
Ko=u/1-u,
1-U = 1/ko.