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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.
dependent on the flow
a function of temperature only
independent of the flow

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Hydraulics and Fluid Mechanics in ME
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

Specific gravity of liquid
Compressibility of liquid
Density of liquid
Surface tension of liquid

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Hydraulics and Fluid Mechanics in ME
A differential manometer is used to measure

Pressure in Venturimeter
Pressure in pipes and channels
Difference of pressures between two points in a pipe
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

None of these
Pelton wheel
Francis turbine
Kaplan turbine

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

newton-sec per meter
newton-sec per meter
metres² per sec
kg sec/meter

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its meatcentric height is zero
When the metacentre is above e.g.
Metacentre has nothing to do with position of e.g. for determining stability
When its e.g. is below its center of buoyancy

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