Irrigation Engineering
When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called

Syphon-aqueduct
Super passage
Aqueduct
Syphon

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

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Irrigation Engineering
A deep well

is weaker structurally than a shallow well
has more discharge than a shallow well
both (A) and (B)
is always deeper than a shallow well

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