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Mechanical Operations

Mechanical Operations
__________ are used for the separation of coarse particles from a slurry of fine particles.

Decanters
Classifiers
Hydrocyclones
Thickeners

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Mechanical Operations
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the

All of these
Elastic constant of the material
Ultimate strength of the material
State or manner of application of the crushing force

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Mechanical Operations
In froth floatation, chemical agent added to cause air adherence is called

Modifier
Activator
Frother
Collector

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Mechanical Operations
increasing the capacity of a screen __________ the screen effectiveness.

Increases
None of these
Decreases
Does not effect

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Mechanical Operations
Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called

Classification
Froth floatation
Thickening
Clarification

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Mechanical Operations
Two particles are called to be equal settling, if they are having the same.

Specific gravity
None of these
Terminal velocities in the same fluid & in the same field of force
Size

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