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Mechanical Operations

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

Hydrocyclones
Thickeners
Decanters
Classifiers

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Mechanical Operations
A compressible cake has the

None of these
Maximum porosity at the filter medium
Maximum porosity at the upstream side
Same porosity throughout the cake thickness

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Mechanical Operations
Filtration of water in a paper mill is done by a/an __________ filter.

Plate and frame
Sparkler
Open sand
Vacuum leaf

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Mechanical Operations
Size reduction mechanism used in Jaw crushers is

Attrition
Impact
Compression
Cutting

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Mechanical Operations
Filtration rate does not depend upon the

Resistance of the cake & the septum
Pressure drop & area of filtering surface
Properties of the cake & the filtrate
None of these

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Mechanical Operations
Size measurement of ultrafine particles can be best expressed in terms of

Screen size
Surface area per unit mass
Micron
Centimetre

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