Hydrology & Irrigation- Quiz: 3

A unit hydrograph for a watershed is triangular in shape with base period of 20 hours. The area of the watershed is 500 ha. What is the peak discharge in m³/hour?

The purpose of double mass curve is

The number of unit hydrographs needed to produce S-curve is

A catchment area of 60 hectare has a runoff coefficient of 0.40 . If a storm of intensity 3 cm/hr and the duration longer than the time of concentration occurs in the catchment, then what is the peak discharge?

A direct runoff hydrograph due to an isolated storm was triangular in shape with a base of 60 hours and a peak of 100 m³/s. If the catchment area is 600 km², the effective rainfall of the storm is

For a catchment with an area of 600 km² the equilibrium discharge of an S-curve obtained by 6-hour unit hydrograph in m³/sec is

Discharge at any time in recession limb of a hydrograph is

Hyetograph is