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Irrigation Engineering

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

rigid module
non-modular outlet
None of these
flexible outlet

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Irrigation Engineering
Groynes are generally built

Inclined downstream up to 30°
Perpendicular to the bank
All listed here
Inclined up stream up to 30°

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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

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

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Irrigation Engineering
The main function of a divide wall is to

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

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Irrigation Engineering
A river training work is generally required when the river is

Meandering
All of these
Degrading
Aggrading

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Irrigation Engineering
Solution of Laplacian equation in three dimensions d²φ/dx² + d²φ/dy² + d²φ/dz² = 0 of water in a syphon, is done by

Method of relaxation
Unwin's method
Khosla's method
Analytical method

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