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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Unit of surface tension is

It has no units
Velocity/unit area
Energy/unit area
Both of the above

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Hydraulics and Fluid Mechanics in ME
In a venturi-flume, the flow takes place at

Gauge pressure
None of these
Absolute pressure
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantities are same

Flow and length
Friction loss and flow
Length and diameter
Friction factor and diameter

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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

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

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Hydraulics and Fluid Mechanics in ME
Centre of buoyancy always

remains below the centre of gravity
remains above the centre of gravity
coincides with the centre of gravity
coincides with the centroid of the volume of fluid displaced

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Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One stoke
One poise
One centistoke
One centipoise

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