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What will be the degree of saturation of a soil sample whose specific gravity G=2.7, void ratio e=0.66 and water content w=20%?

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in Geotechnical Engineering I by (102k points)
What will be the degree of saturation of a soil sample whose specific gravity G=2.7, void ratio e=0.66 and water content w=20%?

(a) 85.88%

(b) 90.91%

(c) 81.81%

(d) 92.92%

I have been asked this question in an online quiz.

The origin of the question is Void Ratio, Porosity and Degree of Saturation in portion Preliminary Definitions and Relationships of Geotechnical Engineering I

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Best answer
The correct answer is (c) 81.81%

Best explanation: Given,

G=2.7

e=0.66

w=20%=0.2

Since the degree of saturation is S=wG/e

S=(0.2*2.7)/0.66

S=0.8181

In percentage S=81.81%.

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