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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Air lift pump
Screw pump
Reciprocating pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
Which of the following is the unit of kinematic viscosity

faraday
stoke
pascal
poise

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Hydraulics and Fluid Mechanics in ME
The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) is

ηm = ηm × ηh
None of these
ηh = ηo × ηm
ηo = ηh × ηm

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Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of gases __________ with rise in temperature.

Increases
Decreases
Remain unaffected
None of these

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

water surface
center of buoyancy
center of pressure
center of gravity

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Hydraulics and Fluid Mechanics in ME
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

Both A and B
Inversely
None of these
Directly

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