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The velocity of flow is proportional to _________ according to Darcy’s law.

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in Geotechnical Engineering I by (102k points)
The velocity of flow is proportional to _________ according to Darcy’s law.

(a) effective stress

(b) hydraulic gradient

(c) cohesion

(d) adhesion

This question was addressed to me during an internship interview.

My doubt stems from Permeability topic in section Permeability of Geotechnical Engineering I

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Best answer
Correct answer is (b) hydraulic gradient

The explanation: The Darcy’s law states that the rate of flow is proportional to the hydraulic gradient.

V=q/A=ki

where, V=velocity

i=hydraulic gradient

K= coefficient of permeability.

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