Irrigation Engineering
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at

same level
any of the above depending on the design
higher level
lower level

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

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

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