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

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

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Irrigation Engineering
Lacy's regime condition is obtained if

Silt grade in the channel is variable
Silt charge in the channel is variable
Channel flows in unlimited, incoherent alluvium of the same character as that transported material
Discharge in the channel is variable

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