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UPSC Civil Service Exam Questions

Q1:

A soil has a bulk density of 1.80 g/cm3 at water content of 5%. If the void ratio remains constant, then its bulk density for a water content of 10% will be

A 1.88 g/cm3

B 1.80 g/cm3

C 1.98 g/cm3

D 1.70 g/cm3

ANS:A - 1.88 g/cm3

STEP 1. Y= 1.8/(1+0.05)
Y=1.71.

STEP 2. put y value in same formula,
1.71=x/(1+0.1),
X = 1.88.
(X is an unknown bulk density.)



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