Hydraulics and Fluid Mechanics in ME
Buoyant force is

Equal to the volume of liquid displaced
The force necessary to maintain equilibrium of a submerged body
The resultant force acting on a floating body
The resultant force on a body due to the fluid surrounding it

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

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

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