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Mechanical Operations

Mechanical Operations
The process opposite to 'dispersion' is termed as the

Flocculation
Sedimentation
None of these
Filtration

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Mechanical Operations
Moisture can be removed from lubricating oil using

Sparkler filter
Clarifier
Vacuum leaf filter
Tubular centrifuge

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Mechanical Operations
Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle).

V/6D.S
6.V/D.S
S/V
V/D.S

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Mechanical Operations
A tube mill compared to a ball mill

Produces a coarser product
Uses much larger balls
Has a higher diameter/length ratio
Has a higher length/diameter ratio

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Mechanical Operations
The main size reduction operation in ultrafine grinders is

Cutting
Compression
Attrition
Impact

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Mechanical Operations
The controlling resistance in a rotary drum vacuum filter is the __________ resistance.

Cake
Piping
Filter medium
None of these

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