Hydraulics and Fluid Mechanics in ME
Which of the following statement is correct as regard to water wheels?

They are suitable even for low water heads
They give constant efficiency, even if the discharge is not constant
They have slow speeds
All of these

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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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