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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

First rise and then fall
Nearly horizontal
Steep
Horizontal

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

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

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

Decreases
First increases and then decreases
Increases
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

Four
Three
One
Two

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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
Pressure intensifier increases the pressure in proportion to

Square of ratio of diameters
Inverse ratio of diameters
Ratio of diameters
Square of inverse ratio of diameters

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