Mechanical Operations
A propeller agitator

All of these
Produces mainly axial flow
Is used for mixing high viscosity pastes
Runs at very slow speed (2 rpm)

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Mechanical Operations
Cumulative analysis for determining surface is more precise than differential analysis, because of the

Assumption that all particles in a single fraction are equal in size, is not needed
Assumption that all particles in a single fraction are equal in size
Fact that screening is more effective
None of these

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