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Irrigation Engineering

Irrigation Engineering
If average particle size of the silt in millimeters is m, the Lacey's silt factor f is proportional to

m1/2
m1/3
m3
m2/3

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

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Irrigation Engineering
Retrogression of the bed level of a river downstream a weir, occurs due to

Heavy impact of water
Increase of the bed level
Soft soil strata
Less percentage of silt

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Irrigation Engineering
The length and width of a meander and also the width of the river, vary roughly as

Square root of the discharge
Square of the discharge
Discharge
Cube of the discharge

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Irrigation Engineering
Garnett's diagrams are used for graphical solution of design equations of a canal by

Kennedy's theory
Gibb's theory
Lindlay theory
Lacey's theory

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Irrigation Engineering
Attracting groynes are built

Inclined up stream
Perpendicular to the bank
None of these
Inclined down stream

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