Question

The capacity-inflow ratio for a reservoir _________________

(a) is a constant factor overtime

(b) increases with time

(c) decreases with time

(d) may increase or decrease with time

I got this question by my school teacher while I was bunking the class.

I want to ask this question from Reservoir Capacity Determination Using Hydrograph and Mass-curve in section Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

Answer 1

Correct answer is (c) decreases with time

Best explanation: The silting rate in the reservoir will be more in the beginning as its capacity reduces due to silting, the silting rate will also reduce. The trap efficiency is a function of capacity. The capacity reduces when trap efficiency reduces and lesser sediment is trapped.