Hydraulics and Fluid Mechanics in ME
A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is

cannot be predicted from the given data
one-fourth its value when cylinder was full
one-half its value when cylinder was full
zero

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

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