Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 5 (Q.No. 47)
47.
If the proportion of soil passing 75 micron sieve is 50% and the liquid limit and plastic limit are 40% and 20% respectively, then the group index of the soil is
3.8
6.5
38
65
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Bidyut said:   5 years ago
0.2(50-35)+0.005(50-35)(40-40)+0.01(50-15)(20-10).
Answer = 6.5.
(2)

Prachi said:   6 years ago
Thanks @Thamarai.

Srinu said:   9 years ago
Thank you @Thamarai Selvi.

Thamarai selvi said:   9 years ago
Group index formula = (F - 35)[0.2 + 0.005(L.L - 40) + 0.01(F - 15)(PI - 10)].

Post your comments here:

Your comments will be displayed after verification.