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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is

e > m > d
d > m > e
d > e > m
e > d > m

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

49.2%
39.2%
68.8%
84.8%

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic press
Jet pump
Air lift pump
Hydraulic coupling

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Hydraulics and Fluid Mechanics in ME
Specific weight of water in S.I. units is equal to

10000 N/m3
1000 N/m3
9.81 xlO3 N/m3
9.81 xlO6 N/m3

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Hydraulics and Fluid Mechanics in ME
In impulse Turbine, energy available at the inlet is in the form of

None of these
Potential Energy
Strain Energy
Kinetic energy

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