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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is given by the equation

N√P / H3/2
N√P / H3
N√P / H5/4
N√P / H²

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Hydraulics and Fluid Mechanics in ME
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Unpredictable
The same as the surface of liquid
Lower than the surface of liquid
Higher than the surface of liquid

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Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Pressure in cylinder vs. swept volume
Pressure vs. speed
Flow vs. swept volume
Flow vs. speed

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

Higher critical velocity
None of these
Velocity of approach
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

More than
None of these
Equal to
Less than

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

Two
One
Three
Four

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