Question

What is the value of Lacey’s monsoon duration factor for a good year?

(a) 0.5

(b) 1.2

(c) 1.5

(d) 1.8

The question was posed to me during an online interview.

My enquiry is from Reservoir Capacity Determination Using Hydrograph and Mass-curve in section Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

Answer 1

Correct choice is (c) 1.5

To explain: The monsoon duration factor (m) for a bad year is 0.5 and that of the normal year the value is 1.2. For a good year, the monsoon duration factor is 1.5.