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The linear dependency between velocity of flow and hydraulic gradient exists if effective size of soil _______

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in Geotechnical Engineering I by (102k points)
The linear dependency between velocity of flow and hydraulic gradient exists if effective size of soil _______

(a) does not exceed 3mm

(b) exceeds 3mm

(c) equal to 3mm

(d) equal to 5mm

I have been asked this question in a national level competition.

The doubt is from Permeability in chapter Permeability of Geotechnical Engineering I

1 Answer

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Right option is (a) does not exceed 3mm

The best I can explain: In 1892, Allen Hazen concluded that the linear dependency between velocity of flow and hydraulic gradient exists if effective size of soil did not exceed 3mm.

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