Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
viscous force and buoyancy force
inertial force and gravity
pressure force and inertial force

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Hydraulics and Fluid Mechanics in ME
Discharge of a centrifugal pump is

Inversely proportional to diameter of its impeller
Inversely proportional to (diameter)² of its impeller
Directly proportional to diameter of its impeller
Directly proportional to (diameter)² of its impeller

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