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IRRIGATION ENGINEERING

Irrigation Engineering
For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is

(N+l)/m
m/N
N/(m+l)
m/(N+l)

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Irrigation Engineering
The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than

20 cm
40 cm
30 cm
10 cm

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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

1.084
1.074
1.064
1.054

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Irrigation Engineering
A fall in a canal bed is generally provided, if

Ground slope exceeds the designed bed slope
None of these
Designed bed slope exceeds the ground slope
Ground slope is practically the same as the designed bed slope

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Irrigation Engineering
As compared to gravity dams, earthen dams

require less skilled labour
are costlier
require sound rock foundations
are less susceptible to failure

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