Irrigation Engineering
Lining of irrigation channels

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

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Irrigation Engineering
The flow-mass curve is graphical representation of

Cumulative discharge and time
Cumulative discharge, volume and time in chronological order
Discharge and percentage probability of flow being equaled or exceeded
Discharge and time in chronological order

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Irrigation Engineering
A divide wall is provided

Parallel to the axis of weir and upstream of it
At an inclination to the axis of weir
Parallel to the axis of weir and downstream of it
At right angle to the axis of weir

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