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UPSC Civil Service Exam Questions - Engineering

Q1:

A clay sample has a void ratio of 0.54 in dry state. The specific gravity of soil solids is 2.7. What is the shrinkage limit of the soil ?

A 8.5%

B 10.0%

C 17.0%

D 20.0%

ANS:D - 20.0%

Shrinkage limit (Ws) = void ratio/specific gravity = e/G.
0.54/2.7 = 0.20,
= 0.20 * 100 = 20%.