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Irrigation Engineering

Irrigation Engineering
The sensitivity of a rigid module is

zero
1
infinity
between zero and one

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Irrigation Engineering
The scour depth D of a river during flood, may be calculated from the Lacey's equation

D = 0.47 (Q/f)
D = 0.47 (Q/f)1/2
D = 0.47 (Q/f)2/3
D = 0.47 (Q/f)1/3

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Irrigation Engineering
The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to

3 to 4 m per second
2 to 3 m per second
4 to 5 m per second
1 to 2 m per second

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Irrigation Engineering
Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?

slope-area method
moving boat method
area-velocity method
ultra-sonic method

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Irrigation Engineering
For a proportional outlet, the flexibility is

zero
greater than 1
between zero and 1
1

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

R (θ + tan θ)
R2 (θ + cot θ)
R2 (θ + tan θ)
R (θ + cot θ)

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