Irrigation Engineering
According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase

Maximum discharge
Water surface elevation during floods
Rate of flood wave
Surface slope of streams above the levied portion

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Irrigation Engineering
A divide wall is provided

Parallel to the axis of weir and upstream of it
At right angle to the axis of weir
At an inclination to the axis of weir
Parallel to the axis of weir and downstream of it

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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
All listed here
The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream

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