Question

In which of the following method, the catchments were categorized as good, bad and average catchments to account for the general characteristics of the catchment?

(a) Binnie’s percentages

(b) Strange’s tables

(c) Barlow’s tables

(d) Inglis formula

This question was posed to me in quiz.

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

Answer 1

Right choice is (b) Strange’s tables

Explanation: Strange’s tables was an improvement over Binnie’s tables. The catchments prone to producing higher yield were good catchments and that of low yields were bad catchments. Average catchments were the intermediate types.