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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

mass of liquid displaced
pressure of the liquid displaced
depth of immersion
viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Mixed flow pump
Reciprocating pump
Centrifugal pump
Axial flow pump

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Hydraulics and Fluid Mechanics in ME
Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.

Fourth power of diameter
Square of diameter
Cube of diameter
Diameter

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Hydraulics and Fluid Mechanics in ME
Which of the following is not a reaction turbine?

Pelton wheel
Fourneyron turbine
Journal turbine
Thomson's turbine

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Remain unaffected
Increases
Decreases
Unpredictable

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

midway between rear and front of body
at the extreme rear of body
any where between rear and front of body depending upon Reynolds number
at the extreme front of body

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