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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

a physical property of the fluid.
a function of temperature only
dependent on the flow
independent of the flow

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Hydraulics and Fluid Mechanics in ME
The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________ efficiency.

None of these
Mechanical
Hydraulic
Overall

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

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

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Hydraulics and Fluid Mechanics in ME
In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

More than
Less than
None of these
Equal to

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Double
Equal to
Five to six times
Three to four times

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Hydraulics and Fluid Mechanics in ME
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

May increase/decrease
Keeps on increasing
Remain constant
Keeps on decreasing

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