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Irrigation Engineering

Irrigation Engineering
The ratio of the head recovered to the head put in, is known as

Modular limit
Efficiency
Flexibility
Sensitivity

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Irrigation Engineering
To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood series
i) mean value
ii) standard deviation
iii) length of record
iv) coefficient of skew
The correct answer is

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

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Irrigation Engineering
A hydroelectric scheme operating under a head of 80 m will be classified as

low head scheme
medium head scheme
None of these
high head scheme

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Irrigation Engineering
In case of a trapezoidal notch fall

All listed here
Splay upstream from the notch section is 45°
Top length of the piers should not be less than their thickness
Splay downstream from the notch section is 22½°

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Irrigation Engineering
Which of the following canal outlets maintains a constant discharge ?

None of these
flexible outlet
non-modular outlet
rigid module

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Irrigation Engineering
If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is

D/5
D/2
D
D/3

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