CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An isolated 4 hour storm occurred over a catchment of 12 ha area is as follow

TimeIntensity (cm/hr)10.00 AM to 10:30 AM0.910:30 AM to 11:00 AM1.211:00 AM to 12:00 PM1.612:00 PM to 12:45 PM2.212.45 PM to 1.15 PM1.81.15 PM to 2.00 PM0.7

The ϕindex for the catchment is 1.1 cm/hr. The estimated runoff volume (in m3) from the catchment due to above storm is

A
1704
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2070
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
4640
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4800
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 2070
Only the storm between 10:30 AM to 1:15 PM will contribute to the runoff

Runoff=

(1.21.1)×3060+(1.61.1)+(2.21.1)×4560+(1.81.1)×3060

=1.725 cm

Runoff volume

=(1.725×102)×(12×104) m3

=2070 m3

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Runoff Produced by Non-uniform Rainfall-Part-1
HYDROLOGY & IRRIGATION
Watch in App
Join BYJU'S Learning Program
CrossIcon