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Irrigation Engineering

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

Flexibility
Modular limit
Efficiency
Sensitivity

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Irrigation Engineering
In a Sarda type fall, the rectangular crest, may be used for discharge up to

6 cumecs
10 cumecs
14 cumecs
20 cumecs

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Irrigation Engineering
A river training work is generally required when the river is

Meandering
All of these
Degrading
Aggrading

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Irrigation Engineering
V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is

2V²/√3 R
2V²/5R
5V²/2R
3V²/4R

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Irrigation Engineering
Groynes are generally built

Inclined up stream up to 30°
Inclined downstream up to 30°
All listed here
Perpendicular to the bank

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Irrigation Engineering
A minimum of 90 cm free board is provided if the discharge in the canal is between

30 to 60 cumecs
Over 100 cumecs
Over 60 cumecs
30 to 33 cumecs

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