Question

Which of the following plants utilize the minimum flow in a river having no appreciable pondage on its upstream side?

(a) Storage plant

(b) Run-off river plant

(c) Pumped storage plants

(d) Tidal plants

This question was addressed to me in quiz.

The origin of the question is Thermal and Hydropower in section Hydro Electric Power of Irrigation Engineering

Answer 1

The correct choice is (b) Run-off river plant

The best explanation: Run-off river plants utilize the minimum flow in a river having no appreciable pondage on its upstream side. The excess water is temporarily stored in the pond on u/s side when the discharge at the site is more than the demand i.e. peak-off hours. It is then utilized during peak hours.