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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Less than
More than
None of these
Same as

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Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

the nature of the liquid and the solid
any one of the above
the material which exists above the free surface of the liquid
both of die above

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Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

w/h
h/w
wh
h

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Hydraulics and Fluid Mechanics in ME
A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

Velocity head
Manometric head
Static head
Kinetic head

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

velocity of fluid
absolute pressure
rotation
flow

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Hydraulics and Fluid Mechanics in ME
If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be

5 meters of water column
3 meters of water column
2 meters of water column
6 meters of water Column

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