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Irrigation Engineering

Irrigation Engineering
A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If

6.0 cm
4 cm
4.5 cm
5 cm

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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

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

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Irrigation Engineering
A fall which maintains its depth, is

A rectangular notch fall
A trapezoidal notch fall
A low weir fall
All listed here

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Irrigation Engineering
If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is

x = d1 / r1
x = r2 d2
x = d2 / r2
x = r1 d1

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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

1.054
1.074
1.064
1.084

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Irrigation Engineering
The uplift pressure on the face of a drainage gallery in a dam is taken as

hydrostatic pressure at toe
average of hydrostatic pressure at toe and heel
two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
None of these

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