Question

The loss of head per unit distance in soil is called ___________

(a) Velocity potential

(b) Hydraulic gradient

(c) Velocity gradient

(d) Stream function

The question was asked by my college professor while I was bunking the class.

I'm obligated to ask this question of Two Dimensional Flow : Laplace Equation in chapter Seepage Analysis of Geotechnical Engineering I

Answer 1

Correct answer is (b) Hydraulic gradient

To explain I would say: The loss of head or the dissipation of the hydraulic head per unit distance of flow through the soil is called hydraulic gradient

i.e. i=h/L.