Hydraulics and Fluid Mechanics in ME
The conditions for the stable equilibrium of a floating body are

the meta-center should lie above the center of gravity
all the above are correct
a righting couple should be formed
the center of buoyancy and the center of gravity must lie on the same vertical line

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

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

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure at any point, in a liquid, is

Directly proportional to the length of the vessel containing liquid
Directly proportional to the area of the vessel containing liquid
Inversely proportional to the depth of liquid from the surface
Directly proportional to the depth of liquid from the surface

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