Question

What is unit hydrograph helpful in?

(a) Estimating runoff from a basin

(b) Estimating no of days of rain fall

(c) Knowing the draught months in a year

(d) In deciding the land for hydel power plant

This question was posed to me in a national level competition.

I'm obligated to ask this question of Hydrographs topic in portion Hydro Electric Power Plant of Energy Engineering

Answer 1

Correct answer is (a) Estimating runoff from a basin

The explanation: Unit hydrograph is helpful in estimating runoff from a basin for a storm of given duration. It is also helpful in predicting the expected flood flow from a catchment if rainfall intensity in the catchment is known.