Irrigation Engineering
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is

Q = 1.71 BD3/2
Q = 1.71 BD
Q = 1/71 BD2/3
Q = 1.71 BD1/2

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Irrigation Engineering
A counter berm is

A vertical benching provided on the inner edge of the bank
A horizontal benching provided on the inside slope
A vertical benching provided on the outer edge of the bank
A horizontal benching provided on the outside slope

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Irrigation Engineering
Pick up the correct statement from the following and answer

All of these
In a level crossing, a cross regulator is provided on the canal below the crossing
In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
In a level crossing a regulator is provided across the drainage at its down-stream

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