Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump is

None of these
Proportional to speed of impeller
Proportional to diameter and speed of impeller
Proportional to diameter of impeller

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Hydraulics and Fluid Mechanics in ME
Reynolds number is significant in

full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
All of these
simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
supersonics, as with projectile and jet propulsion

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