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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Poise is the unit of

shear stress in fluids
capillarity
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Kept fully open
Irrespective of any position
Kept 50% open
Kept fully closed

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Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

equal
more
less
less at low temperature and more at high temperature

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

Centre of pressure
Metacentre
None of the listed here
Centre of buoyancy

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Hydraulics and Fluid Mechanics in ME
A hydraulic coupling belongs to the category of

Power developing machines
Energy generating machines
Power absorbing machines
Energy transfer machines

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

inertial, gravity
buoyancy, pressure
buoyancy, inertial
buoyancy, gravity

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