Question

The rate of water contribution to the well increases with the increase in the depression head.

(a) True

(b) False

This question was addressed to me by my college professor while I was bunking the class.

This question is from Open Well and Dug Well topic in section Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

Answer 1

Right choice is (a) True

To explain I would say: The velocity of the percolating water depends on the depression head. If the amount of water withdrawn from the well is more, increasing the depression head, higher flow velocities will prevail in the vicinity of the well. At a certain stage, depression head may become so great that the soil particles also start coming with the percolating water.