Multiple choice

Water is flowing through the permeability apparatus as shown in the figure. The coefficient of permeability of the soil is km/s and the porosity of the soil sample is 0.50.

What are the discharge velocity and seepage velocity through the soil sample?

  1. k, 2k

  2. 2/3k, 4/3k

  3. 2k, k

  4. 4/3k, 2/3k

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 $\text{Discharge velocity V = ki = k $\times$ hydraulic gradient = k m/s} \\ \text{Seepage velocity} = \frac{v}{n} = \frac{k}{0.5} = 2k m/s$