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The coefficient of uniformity (CV) is the ratio of _________

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in Geotechnical Engineering I by (102k points)
The coefficient of uniformity (CV) is the ratio of _________

(a) D60 and D10

(b) D30 and D10

(c) D10 and D30

(d) D10 and D30

The question was asked in an internship interview.

This intriguing question originated from Particle Size Distribution Curve in section Index Properties Determination of Geotechnical Engineering I

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The correct choice is (a) D60 and D10

To elaborate: The coefficient of uniformity CV, is defined as the ratio of D60 and D10

              i.e.CV = D60/ D10.

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