Irrigation Engineering
A river is said to be of

Aggrading type if it builds up its bed to a certain slope
Meandering type if it flows in sinuous curve
All of these
Degrading type if it cuts its bed to a certain slope

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Irrigation Engineering
Which one of the following statements is correct?

The canal system and the drainage system are complementary
The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
All listed here

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