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Irrigation Engineering

Irrigation Engineering
The optimum depth of kor watering for a rice crop, is

13.5 cm
23.0 cm
17.5 cm
19.0 cm

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Irrigation Engineering
Hydrodynamic pressure due to earthquake acts at a height of

4H/3π above the base
3H/4π below the water surface
3H/4π above the base
4H/3π below the water surface, where H is the depth of water

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Irrigation Engineering
Optimum depth of kor watering for rice is

165 mm
215 mm
190 mm
135 mm

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Irrigation Engineering
The width of a meander belt is the transverse distance between

None of these
Apex point of one curve and apex point of the reserve curve
Apex point and the crossing
Two banks of meandering river

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Irrigation Engineering
The uplift pressure on a dam can be controlled by
i) constructing cutoff under upstream face
ii) constructing drainage channels between the dam and its foundation
iii) by pressure grouting in foundation
The corret answer is

both (i) and (iii)
both (i) and (ii)
only (i)
(i), (ii) and (iii)

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Irrigation Engineering
Useful soil moisture for plant growth, is

Hygroscopic water
Gravity water
Capillary water
Chemical water

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