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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

quasi static
steady state
laminar
uniform

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

Pressure
Strain
Kinetic
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

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

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

vertical upward force through e.g. of body and center line of body
mid point between e.g. and center of buoyancy
buoyant force and the center line of body
All of these

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Hydraulics and Fluid Mechanics in ME
In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 'θ'. Sensitivity of inclined tube to sensitivity of U-tube is equal to

1/Sinθ
1/Cosθ
Sinθ
Cos θ

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