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Mechanical Operations

Mechanical Operations
Gravity stamp mill is meant for the __________ crushing.

Intermediate
Primary
Fine
Ultrafine

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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

Clarification
Froth floatation
Classification
Thickening

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Mechanical Operations
The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to

N³
N¹
N°
N²

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Mechanical Operations
Gravity settling process is not involved in the working of a

Sedimentation tank
Classifier
Hydrocyclone
Dorr-thickener

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Mechanical Operations
Colloid mills achieve size reduction mainly by

Attrition
Compression
Impact
Cutting

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Mechanical Operations
Dispersion of a gas through liquid is done by using a

Masticator
Kneader
Sparger
None of these

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