Hydraulics and Fluid Mechanics in ME
A floating body is said to be in a state of stable equilibrium

when the metacentre is above the centre of gravity
only when its centre of gravity is below its centre of buoyancy
when its metacentric height is zero
when the metacentre is below the centre of gravity

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Hydraulics and Fluid Mechanics in ME
Cavitation will begin when

flow is increased
the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
pressure becomes more than critical pressure
pressure is increased

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