Mechanical Operations
Which of the following is the most suitable for handling fibrous and dense slurries?

Propeller agitator
Turbine agitator
Radial propeller agitator
Cone type agitator

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

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Mechanical Operations
Crushing efficiency is the ratio of the

Surface energy created by crushing to the energy absorbed by the solid
Energy absorbed by the solid to the surface energy created by crushing
Energy absorbed by the solid to that fed to the machine
Energy fed to the machine to the surface energy created by crushing

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