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Irrigation Engineering

Irrigation Engineering
Useful soil moisture for plant growth, is

Hygroscopic water
Gravity water
Capillary water
Chemical water

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Irrigation Engineering
According to Bligh's creep theory, percolating water flows along

Straight path under the foundation of the dam
None of these
The outline of the base of the foundation of the dam
Circular path under the foundation of the dam

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Irrigation Engineering
For standing crops in undulating sandy fields, the best method of irrigation, is

Furrow method
Free flooding
Check method
Sprinkler irrigation

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Irrigation Engineering
The main function of a divide wall is to

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

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Irrigation Engineering
A land is known as waterlogged

when the permanent wilting point is reached
capillary fringe reaches the root zone of plants
None of these
when gravity drainage has ceased

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Irrigation Engineering
If the R.L’s of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be

syphon aqueduct
syphon
aqueduct
superpassage

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