P. A weir is a hydraulic structure where majority or the entire ponding is achieved by a raised crest and smaller part or nil part by the shutters.
Q. A weir is a hydraulic structure that is made by constructing the width of the channel only.
R. A barrage is a hydraulic structure that is made by creating a choking condition only.
S. A barrage is a hydraulic structure where majority or the entire ponding is achieved by a shutter and smaller part or nil part by the raised crest.
Identify the correct statements in the above.
1
P and R
2
Q and S
3
Q and R
4
P and S