Question

When an irrigation canal is taken sufficiently above a drainage channel, the cross- drainage is called

• A. Aqueduct
• B. Super passage
• C. Syphon Aqueduct
• D. Syphon

Answer 1

The correct option is A Aqueduct

Aqueduct -

• In an aqueduct, the canal bed level is above the drainage bed level so a canal is to be constructed above the drainage.
• The canal water level is referred to as full supply level (FSL) and drainage water level is referred to as high flood level (HFL).
• The HFL is below the canal bed level.
• Aqueduct is similar to a bridge, instead of roadway or railway, canal water is carried in the trough and below that the drainage water flows under gravity and possessing atmospheric pressure.