Irrigation Engineering
If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

B = 0.22 √(H + d)
B = 0.44 √(H + d)
B = 0.55 √(H + d)
B = 0.33 √(H + d)

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Irrigation Engineering
A river is said to be of

All of these
Meandering type if it flows in sinuous curve
Degrading type if it cuts its bed to a certain slope
Aggrading type if it builds up its bed to a certain slope

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