Irrigation Engineering
For a unique design of a channel by Kennedy's theory

Its breadth and depth ratio must only be known
All of these
Its breadth must only be known
Its depth must only be known

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Irrigation Engineering
Lacy's regime condition is obtained if

Channel flows in unlimited, incoherent alluvium of the same character as that transported material
Discharge in the channel is variable
Silt grade in the channel is variable
Silt charge in the channel is variable

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