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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.
Calculate the crest factor if the peak value of current is 10A and the rms value is 2A.
The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)
When the crest of one wave falls on the crest of the second wave, and trough of one wave falls on the trough of the second wave, this phenomenon is called
Statement (I): The ogee spillway is a control weir having an S-shaped crest profile which provides a high discharge coefficient without causing cavitations. Statement (II): The crest profile of ogee spillway conforms to the lower nappe of flow over a ventilated sharp-crested weir and ensures a constant discharge coefficient for all heads.
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest.
The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept