Irrigation Engineering
The most suitable section of a lined canal, is

Trapezoidal section with rounded corners for large canals
Triangular section with circular bottom for small canals
Both (a) and (b)
None of these

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Irrigation Engineering
As per Lacey’s theory, the silt factor is

not related to average particle size
directly proportional to average par¬ticle size
directly proportional to square root of average particle size
inversely proportional to average par¬ticle size

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