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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

hyperbolic
parabolic
linear
inverse type

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Hydraulics and Fluid Mechanics in ME
Practical fluids

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

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

Inversely as density
As square of density
Inversely as square root of density
Directly as the air or gas density

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

None of the listed here
More than
Less than
Equal to

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Hydraulics and Fluid Mechanics in ME
The flow ratio in case of Francis turbine varies from

0.4 to 0.5
0.6 to 0.9
0.15 to 0.3
1 to 1.5

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.492
0.848
0.392
0.688

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