Irrigation Engineering
Pick up the correct statement from the following and answer

In a level crossing a regulator is provided across the drainage at its down-stream
In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
All of these
In a level crossing, a cross regulator is provided on the canal below the crossing

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Irrigation Engineering
In a syphon aqueduct

Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough
Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough

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