Hydraulics and Fluid Mechanics in ME
Stanton diagram is a

log-log plot of relative roughness against Reynolds number
log-log plot of friction factor against Reynolds number
semi-log plot of friction factor against relative roughness
semi-log plot of friction factor against Reynolds number

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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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