Question: 1. Baseflow separation is performed (a) on a isochrone to get the direct runoff hydrograph (b) on a storm hydrograph to obtain the magnitude

1. Baseflow separation is performed (a) on a isochrone to get the direct runoff hydrograph (b) on a storm hydrograph to obtain the magnitude of effective rainfall (c) on a storm hydrograph to obtain the direct runoff hydrograph (d) none of the above 2. 3. State True or False : According to SCS curve number method, CN=0 refers to highly impermeable soil and CN= 100 refers to highly permeable soil. (a) True (b) False If two storms occur continuously in a watershed, we can find the runoff of the watershed by using incremental values of rainfall directly using SCS method. (b) True (b) False Latent heat of evaporation in cal/g for a water (at a temperature of 35 degree C) is 4. Draw a direct runoff hydrograph and mark Time base (Tb), Time to peak, (Tp), basin lag or lag time (t p or t lag). 5. In the disaggregated approach for finding the time of concentration, for finding channel flow, we use (a) SCS Nomograph method (b) Manning's formula (c) SCS Lag method (d) none of the above

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