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GATE (CE) 2024 : HYDROLOGY AND IRRIGATION QUIZ#3
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Question 1
An isolated 4-hour storm occurred over a catchment as follows
The φ index for the catchment is l0mm/h. The estimated runoff depth from the catchment due to the above storm is_____mm.
The φ index for the catchment is l0mm/h. The estimated runoff depth from the catchment due to the above storm is_____mm.
Question 2
The equilibrium discharge (in cumecs) of the S-curve derived from a 4-h unit hydrograph for this catchment, having an area of 360 km2, is
Question 3
For a 6 hours duration storm, the ordinates for a flood hydrograph are given below:
Find the direct runoff depth (in cm), if the catchment area is 300 km2.
[Assume base flow = 5 m3/s]
Find the direct runoff depth (in cm), if the catchment area is 300 km2.
[Assume base flow = 5 m3/s]
Question 4
An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in
, up to one decimal place) is_________
, up to one decimal place) is_________Question 5
A 596 km2 catchment has a 12 hour unit hydrograph which can be
approximated as a triangle and its time base is 144 hours, the peak ordinate of the unit hydrograph is
Question 6
The peak discharge of a 4-hr unit hydrograph, triangular in shape, for a basin of 108 km2, is 20 cumecs. The time base (in hrs)of this hydrograph is
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Mar 13ESE & GATE CE
