Irrigation Engineering
A hydraulic jump is generally formed when a stream moving with

A hyper-critical velocity meets a stream moving with a critical velocity
A hyper-critical velocity meets a stream moving with a sub-critical velocity
A sub-critical velocity meets a stream moving with a hyper-critical velocity
A hyper-critical velocity meets a stream moving with a hyper-critical velocity

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

In a level crossing a regulator is provided across the drainage at its down-stream
In a level crossing, a cross regulator is provided on the canal below the crossing
All of these
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

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