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Mechanical Operations

Mechanical Operations
Traces of solids are removed from, liquid in a

Classifier
Sparkler filter
Rotary vacuum filter
Clarifier

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Mechanical Operations
Grinding efficiency of a ball mill is of the order of __________ percent.

40-50
43835
90-95
75-80

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Mechanical Operations
The inlet pressure in a constant rate filtration

Decreases gradually
Increases continuously
None of these
Remains constant

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Mechanical Operations
In bag filters, filter fabrics are never made of

Cotton fibres
Polyester fibres
Metallic wire woven mesh
Nylon fibres

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Mechanical Operations
Wet grinding in a revolving mill __________ as compared to dry grinding.

Requires more energy
Gives less wear on chamber walls
Complicates handling of the product
Increases capacity

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Mechanical Operations
Xanthates are used in the froth floatation process as a/an

Collector
Frother
Activator
Conditioner

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