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Instantaneous unit hydrograph is a hydrograph of
i) unit duration
ii) unit rainfall excess
iii) infinitely small duration
iv) infinitely small rainfall excess
The correct answer is
An inflow hydrograph is routed through a reservoir to produce an outflow hydrograph. The peak flow of the inflow hydrograph is PI and the time of occurrence of the peak is tI. The peak flow of the outflow hydrograph is P0 and the time of occurrence of the peak is t0. Which one of the following statements is correct?
Duration along the critical path defines which of the following? A. Shortest duration needed B. Shortest duration permissible C. Longest duration needed D. Longest duration permissible Select the code for the correct answer from the options given below: 
Instantaneous unit hydrograph is a hydrograph ofi) unit durationii) unit rainfall excessiii) infinitely small durationiv) infinitely small rainfall excessThe correct answer is
S-hydrograph is used to obtain unit hydrograph of
If Vice-President of India has to discharge the duties of President of India in his absence due to some reasons, then what is/are true for such duration? (i) In this duration, Vice-President holds the post of Chairman of Council of States (ii) In this duration, Vice-President will get the emolument of President (iii) If in this duration, Vice-President resigns, then Chief Justice of India will perform the duties of President of India
The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by
A peak flow of a flow of a flood hydrograph due to a six-hour storm is 470 m3/s. The corresponding average depth of rainfall is 8 cm.Assume an infiltration loss of 0.25 cm/hour and a constant base flow of 15 m3/s. What is the peak discharge of 6 hour unit hydrograph for this catchment?
When is the Hydrograph called as a unit hydrograph?
The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be