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Irrigation Engineering

Irrigation Engineering
The net speed under which the turbine reaches its peak efficiency is called

rated speed
design speed
gross speed
operating speed

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Irrigation Engineering
Which of the following can be used as a meter fall ?

All of these
vertical drop fall
flumed glacis fall
unflumed glacis fall

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Irrigation Engineering
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation

t = (h + 1)/(G + t)
t = (h - 1)/(G + t)
t = (h - 1)/(G - t)
t = (h + 1)/G

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Irrigation Engineering
The crest level of a canal diversion head work, depends upon

All listed here
Discharge perimeters
F.S.L. of the canal
Pond level

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Irrigation Engineering
If water table is comparatively high, the irrigation canal becomes useless, due to

Water logging of the cultivated areas
Large amount of seepage
Uncertain water demand
All of these

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Irrigation Engineering
The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be

1172 hectares/m3/sec
637 hectares/m3/sec
972 hectares/m3/sec
837 hectares/m3/sec

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