# Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 2 (Q.No. 1)
1.
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
1.88 g/cm3
1.80 g/cm3
1.98 g/cm3
1.70 g/cm3
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.

Ajay Kumar Yadav said:   1 year ago
Agree, A is the correct answer.

Vel said:   3 years ago
I agree 1.88 is the correct answer.
(3)

Ankit Kumar soni said:   3 years ago
(1)

Nithin S said:   3 years ago
Theoretically, adding water dosen't change dry density.

Hence, Yd is constant.
(1)

Rushikesh patil said:   4 years ago
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.)
(5)

Minnu Rajeev said:   5 years ago
Option D is the correct answer.
(3)

Akshay Thakur said:   6 years ago
Option D is correct and the answer is 1.88 gm/cc.
(2)

SOMENATH GORAI said:   6 years ago
1.881gm/c^2.