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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Density of water is maximum at

100°C
0°K
4°C
0°C

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

Archimedes principle
principle of buoyancy
law of gravitation
All of these

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

None of these
Kinetic
Pressure
Strain

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Hydraulics and Fluid Mechanics in ME
The speed of a pressure wave through a pipe depends upon

the original head
the viscosity of fluid
the length of pipe
the bulk modulus for the fluid

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Hydraulics and Fluid Mechanics in ME
According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

Equal to
None of these
Inversely proportional
Directly proportional

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Hydraulics and Fluid Mechanics in ME
Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of

Necessity of air vessel
Lower discharge
Lower speed of operation
High initial and maintenance cost

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