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Irrigation Engineering

Irrigation Engineering
Which of the following methods of applying water may be used on rolling land ?

furrow flooding
free flooding
boarder flooding
check flooding

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Irrigation Engineering
In case of non-availability of space due to topography, the most suitable spillway is

chute spillway
shaft spillway
straight drop spillway
ogee spillway

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Irrigation Engineering
According to Kennedy, the critical velocity (V₀) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).

V₀ = 0.84 mD0.64
V₀ = 0.55 mD0.64
V₀ = 0.84 mD0.54
V₀ = 0.55 mD0.54

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Irrigation Engineering
A fall in a canal bed is generally provided, if

Designed bed slope exceeds the ground slope
None of these
Ground slope exceeds the designed bed slope
Ground slope is practically the same as the designed bed slope

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Irrigation Engineering
In a Sarda type fall, the rectangular crest, may be used for discharge upto

10 cumecs
20 cumecs
14 cumecs
6 cumecs

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Irrigation Engineering
The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called

Super passage
Syphon
Syphon aqueduct
Super-aqueduct

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