Question

The performance of a well is measured by its ________

(a) specific capacity

(b) specific yield

(c) storage coefficient

(d) permeability coefficient

The question was posed to me in an interview.

My question is taken from Open Well and Dug Well in portion Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

Answer 1

Correct choice is (a) specific capacity

Easy explanation: Specific capacity is the measure of the well performance indicating the rate of water percolation into a well. It is also defined as the yield of a well under the head of one meter. The specific capacity of the well is not constant but decreases as the discharge increases.