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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

surface tension forces
atmospheric pressure
viscosity
air resistance

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Hydraulics and Fluid Mechanics in ME
The factional resistance of a pipe varies approximately with __________ of the liquid.

Pressure
Velocity
Cube of velocity
Square of velocity

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Hydraulics and Fluid Mechanics in ME
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

Contracts
Expands
None of these
Does not change

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Hydraulics and Fluid Mechanics in ME
The centre of pressure acts __________ the centre of gravity of immersed surface.

At
Above
Below
None of these

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Hydraulics and Fluid Mechanics in ME
Practical fluids

possess all the above properties
are viscous
possess surface tension
are compressible

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water from deep wells?

Reciprocating pump
Centrifugal pump
Jet pump
Air lift pump

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