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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
Sensitivity
Efficiency

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Irrigation Engineering
To hold hydraulic jumps, baffle walls are provided in

Sarda type falls
English type falls
Vertical type falls
Montague type falls

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Irrigation Engineering
The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is

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

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Irrigation Engineering
The main function of a divide wall is to

control the silt entry in the canal
prevent river floods from entering the canal
separate the undersluices from weir proper
provide smooth flow at sufficiently low velocity

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Irrigation Engineering
Optimum depth of kor watering for rice is

165 mm
190 mm
135 mm
215 mm

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Irrigation Engineering
Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?

convex water surface
flat water surface
concave water surface
independent of shape of water surface

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