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Mechanical Operations

Mechanical Operations
The sphericity of a solid particle of cubical shape is

(π/6)1/3
(π/6)1/2
π/3
π

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Mechanical Operations
In closed circuit grinding as compared to open circuit grinding, the

Operation is economical
Product has lesser size uniformity
Production rate at a given limiting size is lower
Specific surface of product is more

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Mechanical Operations
Solid particles separation based on the difference in their flow velocities through fluids is termed as the

Elutriation
Sedimentation
Clarification
Classification

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Mechanical Operations
The material is crushed in a gyratory crusher by the action of

Attrition
Impact
Cutting
Compression

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Mechanical Operations
Diatomaceous earth is a/an

Explosive
Catalyst
Filter aid
Filter medium

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Mechanical Operations
Tank filter (e.g., Nutsch filter) is

Used for small scale filtration work
A leaf filter
A high pressure filter
A continuous filter

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