Irrigation Engineering
Regime conditions in a channel may occur if

Channel flows uniformly in incoherent alluvium as that transported in suspension
Silt grade and silt charge are constant
All listed here
Discharge is constant

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Irrigation Engineering
For a standing crop, the consumptive use of water is equal to the depth of water

Transpired by the crop
Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil
Evaporated by the crop
Transpired and evaporated by the crop

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Irrigation Engineering
If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then

Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
Total pressure on the surface is equal to ωx̅
All listed here
Depth of the centre of pressure is 2/3H vertically below the surface

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Irrigation Engineering
A river is said to be of

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

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