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Mechanical Operations

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

Classifiers
Hydrocyclones
Thickeners
Decanters

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Mechanical Operations
Which of the following is not an industrial screening equipment?

Vibrating screen
Trommel
Sharpies centrifuge
Grizzly

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Mechanical Operations
200 mesh seive size corresponds to __________ microns.

24
200
154
74

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Mechanical Operations
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

None of these
Separation efficiency
Selectivity index
Concentration ratio

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Mechanical Operations
Which of the following is not categorised as a "mechanical operation"?

Filtration
Humidification
Agitation
Size enlargement

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Mechanical Operations
Range of compressibility co-efficient of the commercial compressible cake obtained in filtration operation is

0.2 to 0.4
0.2 to 0.8
0.01 to 0.1
0.1 to 0.3

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