Hydraulics and Fluid Mechanics in ME
The kinematic viscosity is the

Product of absolute viscosity and mass of the liquid
Ratio of density of the liquid to the absolute viscosity
Product of absolute viscosity and density of the liquid
Ratio of absolute viscosity to the density of the liquid

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Hydraulics and Fluid Mechanics in ME
Buoyant force is

The resultant force on a body due to the fluid surrounding it
The force necessary to maintain equilibrium of a submerged body
Equal to the volume of liquid displaced
The resultant force acting on a floating body

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Hydraulics and Fluid Mechanics in ME
Mechanical efficiency of a centrifugal pump is the ratio of

Manometric head to the energy supplied by the impeller per kN of water
Actual work-done by the pump to the energy supplied to the pump by the prime mover
Energy supplied to the pump to the energy available at the impeller
Energy available at the impeller to the energy supplied to the pump by the prime mover

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