Question

Capacity inflow ratio for a storage reservoir is defined as the ratio of  _______________________

(a) reservoir capacity to the average annual flood inflow

(b) reservoir capacity to the average annual sediment inflow

(c) the dead storage capacity of the reservoir to the average annual sediment deposited

(d) total annual sediment inflow to the reservoir capacity

The question was posed to me during a job interview.

My question comes from Reservoir Capacity Determination Using Hydrograph and Mass-curve topic in section Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

Answer 1

The correct choice is (a) reservoir capacity to the average annual flood inflow

To explain: Capacity-inflow ratio can be defined as the ratio of the reservoir capacity to the total inflow of water. The trap efficient is a function of the capacity-inflow ratio which is represented by a graph between them.