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Mechanical Operations

Mechanical Operations
Mixing of plastic solids is generally facilitated by

Mastication
Kneading
None of these
Dispersion

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Mechanical Operations
In case of a hammer crusher, the

Maximum feed size may be 50 mm
Rotor shaft carrying hammers can be vertical or horizontal
Feed may be highly abrasive (Moh's scale >5)
Minimum product size is 3 mm

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Mechanical Operations
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Cams or eccentric shafts
Unblanced fly wheels
Electromagnets
Either A, B or C

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Mechanical Operations
__________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution.

Muller
Rubbon blender
Banbery
Tumbler

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Mechanical Operations
Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the

Size
Volatile matter content
Density separation
Differential wettability

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Mechanical Operations
Wheat is ground into flour in a

Hammer crusher
Roller crusher
Impact mill
Fluid energy mill

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