# Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 1 (Q.No. 6)
6.
A soil has a liquid limit of 45% and lies above the A-line when plotted on a plasticity chart. The group, symbol of the soil as per Soil Classification is
CH
CI
CL
MI
Explanation:
No answer description is available. Let's discuss.
Discussion:
7 comments Page 1 of 1.

Radhey Shyam Bairagi said:   2 years ago
Taking U line equation = 0.9(WL-8).
= 0.9(45-8) = 33.3.

Hence above A-line we know its clay so by 33.3 it is between 30 to 50 liquid limit range.

Hence, it's Clay intermediate.

Vinoth said:   5 years ago
In a liquid limit test by Casagrande cup method, 15 blows were required at 60% water content, and 25 blows were required at 48% water content. Liquid limit of the soil is?

Shubham thakur said:   5 years ago
Taking U line equation = 0.9(WL-8).
=0.9(45-8)=33.3.

Hence above A line we know its clay so by 33.3 it is between 30 to 50 liquid limit range. Hence
it's Clay intermediate.

Subham bhowmik said:   6 years ago
The liquid limit(wl) = 45%.
IP=0.73(wl-20)=0.73(45-20)=18.25 that means IP of soil> IP of A line=CI.

Mostafa said:   6 years ago
Ch please check the plasticity chart.

ANBARASAN said:   6 years ago
In plasticity chart, above a line for 45 % liquid limit is" CI". And below a line MI or OI.

ABHISHEK RAJORIYA said:   9 years ago
In the graph above A-line CL CH & CI exist. But in the question liquid limit is 45% given which is lies in CI region and its liquid limit range is 35%-50%.