Irrigation Engineering
Lining of irrigation channels

increases the waterlogging area
decreases the waterlogging area
does not change the water logging area
None of these

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Irrigation Engineering
Lacy's regime condition is obtained if

Silt charge in the channel is variable
Discharge in the channel is variable
Channel flows in unlimited, incoherent alluvium of the same character as that transported material
Silt grade in the channel is variable

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