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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is

0.848
0.884
0.392
0.488

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Hydraulics and Fluid Mechanics in ME
Medium specific speed of a pump implies it is

Centrifugal pump
Axial flow pump
Any one of the above
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
Which of the following velocity potentials satisfies continuity equation ?

x2y
cosx
x2 + y2
x2-y2

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

Square of velocity
Pressure
Velocity
Cube of velocity

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Hydraulics and Fluid Mechanics in ME
A thick liquid like syrup has a ___ viscosity than a light liquid like water.

None of the listed here
Same
Greater
Lesser

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Hydraulics and Fluid Mechanics in ME
A balloon lifting in air follows the following principle

All of these
law of gravitation
Archimedes principle
principle of buoyancy

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