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Irrigation Engineering

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

free flooding
furrow flooding
check flooding
boarder flooding

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Irrigation Engineering
The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in

level crossing
super passage and canal syphon
aqueduct and syphon aqueduct
aqueduct and super passage

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Irrigation Engineering
The Lacey's regime velocity is proportional to

R2/3 S1/2
Q3/4 S1/3
R3/4 S1/3
R1/2 S3/4

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Irrigation Engineering
While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3

An aqueduct
A syphon
A syphon aqueduct
A super passage

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Irrigation Engineering
If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is

x = r1 d1
x = d1 / r1
x = r2 d2
x = d2 / r2

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Irrigation Engineering
If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the perimeter of the canal is

2R (θ + tan θ)
R (θ + tan θ)
2R (θ + cos θ)
R (θ + cos θ)

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