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Irrigation Engineering

Irrigation Engineering
If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is

D/2
D/5
D/3
D

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Irrigation Engineering
The best unit duration of storm for a unit hydrograph is

equal to basin lag
1 hour
one-fourth of basin lag
one-half of basin lag

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Irrigation Engineering
To hold hydraulic jumps, baffle walls are provided in

Montague type falls
English type falls
Sarda type falls
Vertical type falls

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Irrigation Engineering
A deficit of sediments in flowing water may cause a river

Degrading type
Meandering type
Aggrading type
Sub-critical type

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Irrigation Engineering
If V₀ is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to

V₀5/2
V₀7/2
V₀3/2
V₀1/2

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Irrigation Engineering
The crest level of a canal diversion head work, depends upon

Discharge perimeters
F.S.L. of the canal
Pond level
All listed here

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