Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

dQ/Q = 2 × (dH/H)
dQ/Q = 5/2 × (dH/H)
dQ/Q = 3/2 × (dH/H)
dQ/Q = 3 × (dH/H)

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Hydraulics and Fluid Mechanics in ME
The conditions for the stable equilibrium of a floating body are

all the above are correct
the center of buoyancy and the center of gravity must lie on the same vertical line
a righting couple should be formed
the meta-center should lie above the center of gravity

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