Irrigation Engineering
An artesian aquifer is the one where

water surface under the ground is at atmospheric pressure
water is under pressure between two impervious strata
water table serves as upper surface of zone of saturation
None of these

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Irrigation Engineering
Which one of the following statements is correct?

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
The canal system and the drainage system are complementary

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