Mechanical Operations
The most suitable equipment for the transportation of 200 mesh size particles is a

Screw conveyor
Pneumatic conveyor
Belt conveyor
Bucket elevator

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Mechanical Operations
During agitation of liquids, the

Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller
All of these
Froude number is independent for the curves between power number and Reynolds number in baffled system
Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number

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