Hydraulics and Fluid Mechanics in ME
The flow ratio of Francis turbine is defined as the ratio of the

None of these
Velocity of runner at inlet to the velocity of flow at inlet
Velocity of flow at inlet to the theoretical jet velocity
Theoretical velocity of jet to the velocity of flow at inlet

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

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

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