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Irrigation Engineering

Irrigation Engineering
Which of the following canal outlets maintains a constant discharge ?

rigid module
None of these
non-modular outlet
flexible outlet

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Irrigation Engineering
Regime conditions in a channel may occur if

Silt grade and silt charge are constant
Discharge is constant
All listed here
Channel flows uniformly in incoherent alluvium as that transported in suspension

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Irrigation Engineering
The main function of a divide wall is to

control the silt entry in the canal
prevent river floods from entering the canal
separate the undersluices from weir proper
provide smooth flow at sufficiently low velocity

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Irrigation Engineering
In a barrage, the crest level is kept

High with no gates
Low with large gates
Low with no gates
High with large gates

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Irrigation Engineering
The water stored in the reservoir below the minimum pool level is called

valley storage
dead storage
useful storage
surcharge storage

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Irrigation Engineering
If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is

R2 (θ + tan θ)
R (θ + tan θ)
R2 (θ + cot θ)
R (θ + cot θ)

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