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Mechanical Operations

Mechanical Operations
Mixer used for rubber compounding is

Pug mill
Banbury internal mixer
Mixer-extruder
Muller mixer

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Mechanical Operations
The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be

0.5 Wi
3.34 Wi
1.34 Wi
Wi

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Mechanical Operations
Cartridge filters are termed as 'edge' filters, because of the fact that the

None of these
Solids are not deposited at the edge of the disk
Disks have very sharp edge
Bulk of the solids are removed at the periphery of the disks

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Mechanical Operations
__________ mills fall in the category of tumbling mills,

Compartment
All of these
Ball and pebble
Rod and tube

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Mechanical Operations
Size reduction of asbestos and mica is done by

Hammer mills
Crushing rolls
Gyratory crushers
Rod mills

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Mechanical Operations
The main size reduction operation in ultrafine grinders is

Attrition
Cutting
Compression
Impact

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