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Mechanical Operations

Mechanical Operations
To produce talcum powder, use

Hammer mill
Jet mill
Pin mill
Ball mill

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Mechanical Operations
Size reduction of asbestos and mica is done by

Gyratory crushers
Hammer mills
Crushing rolls
Rod mills

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Mechanical Operations
The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)

∝ ΔP
∝ √ΔP
Independent of ΔP
∝ 1/ ΔP

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Mechanical Operations
For coarse reduction of hard solids, use

Impact
Compression
Cutting
Attrition

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Mechanical Operations
In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow.

None of these
Plug
Turbulent
Laminar

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Mechanical Operations
Solid particles of different densities are separated by

Thickness
Sorting classifier
Cyclones
Filters

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