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Irrigation Engineering

Irrigation Engineering
Interception losses are due to
i) evaporation
ii) transpiration
iii) stream flow
The correct answer is

(i), (ii) and (iii)
only (i)
(i)and(ii)
(ii) and (iii)

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Irrigation Engineering
Optimum depth of kor watering for rice is

135 mm
190 mm
165 mm
215 mm

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Irrigation Engineering
If V₀ is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to

V₀5/2
V₀7/2
V₀3/2
V₀1/2

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Irrigation Engineering
The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally

0.20902777777778
0.084027777777778
0.12569444444444
0.16736111111111

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Irrigation Engineering
The maximum permissible eccentricity for no tension at the base of a gravity dam is

B/6
B/3
B/2
B/4

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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

91m
15m
19m
38m

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