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

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

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Hydraulics and Fluid Mechanics in ME
The total energy of a liquid particle in motion is equal to

Kinetic energy - (pressure energy + potential energy)
Pressure energy - (kinetic energy + potential energy)
Pressure energy + kinetic energy + potential energy
Potential energy - (pressure energy + kinetic energy

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe or channel is said to be non-uniform when

The liquid particles at different sections have different velocities
The liquid particles at all sections have the same velocities
Each liquid particle has a definite path
The quantity of liquid flowing per second is constant

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