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Mechanical Operations

Mechanical Operations
Mixing of plastic solids is generally facilitated by

None of these
Dispersion
Kneading
Mastication

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Mechanical Operations
For the transportation of ultrafine particles, the equipment used is a........conveyor.

Screw
Belt
None of these
Pneumatic

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Mechanical Operations
__________ balls capable of grinding the feed in a ball mill gives the maximum efficiency.

Maximum size
Elliptical
Minimum size
Cast iron

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Mechanical Operations
Filter medium resistance is that offered by the

Filter cloth and the embedded particle collectively
Embedded particles in the septum
Filter cloth
None of these

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Mechanical Operations
For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns.

500
5000
5
50

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Mechanical Operations
Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.

Either A or B
Curved
Plane
Ribbed

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