Irrigation Engineering
The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are

Parallel and at right angle to weir crest
Parallel to weir crest in both
At right angle to weir crest in both
At right angle and parallel to weir crest

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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

All listed here
Depth of the centre of pressure is 2/3H vertically below the surface
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

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