Question

The useful storage in a dam reservoir is the volume of water stored __________________

(a) between the minimum and maximum reservoir levels

(b) between the minimum and normal reservoir levels

(c) between normal and maximum reservoir levels

(d) below the minimum pool level

The question was asked in an online quiz.

I would like to ask this question from Capacity and Area Elevation Curves of a Reservoir Site in section Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

Answer 1

Correct option is (b) between the minimum and normal reservoir levels

Explanation: Useful storage can be defined as the volume of water stored in a reservoir between the minimum pool and normal pool level. Conservation storage and flood-mitigation storage are the two sub-divisions of useful storage in a multi-purpose reservoir.