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Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 1 (Q.No. 33)
Soil Mechanics and Foundation Engineering
33.
Pick up the correct statement from the following :
In soils, the flow index indicates variation in shear strength with water content
Liquid limit minus plastic limit, is known as plasticity index of the soil
Plastic limit minus shrinkage limit, is known as shrinkage index of the soil
The ratio of the plasticity index to the flow limit, is known as toughness index of the soil
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 2 of 3.
Bazid said:   6 years ago
Shrinkage limit = liquid limit - shrinkage limit.
(1)
Rahul Gujarati said:   6 years ago
S.limit = L.L - S.L.
Kamran Iqbal said:   6 years ago
All the options are correct except (C).
Shariful (AMIEB) said:   6 years ago
The ratio of the plasticity index to the flow index (not flow limit), is known as the toughness index of the soil.
Sasmita Nayak said:   6 years ago
Toughness Index = plasticity index/flow index.
Shrinkage Index = Liquid limit-shrinkage Limit.
Except (C),(D) all are correct.
Omid said:   6 years ago
C is wrong, it is LL-SL=SI.
(2)
Einstein said:   5 years ago
Only option A and B are correct.
Rakshith R said:   5 years ago
Option C is the correct one. I also agree.
John said:   5 years ago
Shrinkage index = Plastic limit - shrinkage limit.

Refer C.Venkathramaiah text on Geotechnical Engineering.
(1)
Vishal said:   5 years ago
Only, Option C is correct one.
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