Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 1 (Q.No. 1)
1.
In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is
35%
50%
65%
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
123 comments Page 8 of 13.

Madhur said:   8 years ago
Answer is B, why are you taking the difference between 100 and 10 values?

Hemant maher said:   8 years ago
W1=10, W2=20, N1=70, N2=100.

So,
I = (w2-w1)/log(n2/n1).
I = 64.51= 65%.

Adsam Gideon said:   1 decade ago
I tried it again and again, I got 50% as answer some one please clarify.

Dhanraj khatik said:   8 years ago
Use interpolation.

y-0.70=[(0.20-0.70)/(100-10)]*(25-10).
y=62% ans.

Shubham Suroliya said:   8 years ago
By taking interpolation,
Find value at 25 blows.
And answer is 61.66%.

AMAR DEEP TIWARI said:   1 decade ago
Liquid Limit = (20-70)/(100-10) = (LL-70)/(25-10).

So, LL = 61.67%.

Ohoud said:   7 years ago
LL= water content at 20 blow.
100-10/20-70= 100-20/20-LL,
LL= 64.44.

Anandhu Satheesan said:   5 years ago
(25-10)÷(100-25) = (X-70) ÷ (20-X),
After interpolate X = 61.66%.

Rahul said:   6 years ago
Go flow index or similarities of traingle and the answer is 50.1.

Biniam said:   6 years ago
Using interpolation the liquid limit at 25 no of blow is 61.67%.


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