Irrigation Engineering
For the upstream face of an earthen dam, the most adverse condition for stability of slope is

sloughing of slope
sudden drawdown
during construction
steady seepage

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Irrigation Engineering
Which one of the following statements is correct?

All listed here
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

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