Question

The discharge per unit drawdown at a well is known as ___________

(a) specific yield

(b) specific retention

(c) specific capacity

(d) specific storage

This question was posed to me during an online interview.

I want to ask this question from Aquifers and Their Type-2 in division Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

Answer 1

Right choice is (c) specific capacity

For explanation I would say: Specific capacity of a well can be defined as the well-yield per unit of drawdown. The value is not constant but decreases as the discharge increases. The value is not the same for all drawdowns, it should be determined for the fall of the first meter.