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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

decreases
remains same
shows erratic behaviour
increases

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Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H²
P/ √H
P/ H3/2
P/ H

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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
Equal to
Less than
None of these

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the pressure varies

Cube of fan speed
Square of fan speed
Directly as fan speed
Square root of fan speed

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

More than twice
Less than three times
More than three times
Less than twice

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Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Non-Newtonian fluid
Newtonian fluid
Real fluid
Ideal fluid

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