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Irrigation Engineering

Irrigation Engineering
The most suitable chemical which can be applied to the water surface for reducing evaporation is

Methyl alcohol
Cetyl alcohol
Butyl alcohol
Ethyl alcohol

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Irrigation Engineering
Study the following statements.
i) Levees are constructed parallel to river flow,
ii) Spurs are constructed parallel to river flow,
iii) Levees are constructed transverse to river flow,
iv) Spurs are constructed transverse to river flow.
The correct answer is

(ii) and (iii)
(i) and (iv)
(iii) and (iv)
(i) and (ii)

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Irrigation Engineering
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is

1.074
1.084
1.064
1.054

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Irrigation Engineering
Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be

19m
15m
91m
38m

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Irrigation Engineering
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?

tipping bucket type
floating type
Simon’s raingauge
weighing type

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Irrigation Engineering
Irrigation canals are generally aligned along

Contour line
Straight line
Valley line
Ridge line

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