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

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

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Hydraulics and Fluid Mechanics in ME
Manometric head, in case of a centrifugal pump, is equal to

All of these
Work-done per kN of water Losses within the impeller
Energy per kN at outlet of impeller Energy per kN at inlet of impeller
Suction lift + Loss of head in suction pipe due to friction + Delivery lift + Loss of head in delivery pipe due to friction + Velocity head in the delivery pipe

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