Hydraulics and Fluid Mechanics in ME
The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as

Manometric efficiency
Volumetric efficiency
Mechanical efficiency
Overall efficiency

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Hydraulics and Fluid Mechanics in ME
The overall efficiency of a reaction turbine is the ratio of

Actual work available at the turbine to the energy imparted to the wheel
None of these
Power produced by the turbine to the energy actually supplied by the turbine
Work-done on the wheel to the energy (or head of water) actually supplied to the turbine

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Hydraulics and Fluid Mechanics in ME
Froude number is significant in

Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
All of the listed here
Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls
Supersonics, as with projectile and jet propulsion

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