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Mechanical Operations

Mechanical Operations
Cyclones are used primarily for separating

Solids from fluids
Liquids
Solids from solids
Solids

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Mechanical Operations
The value of 'angle of nip' is generally about

64°
52°
32°
16°

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Mechanical Operations
For transporting pasty material, one will use a/an

Screw colaveyor
Apron conveyor
Bucket elevator
Belt conveyor

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Mechanical Operations
In case of a hammer crusher, the

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

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Mechanical Operations
Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Resins
Gums
Hard rubber
Waxes

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Mechanical Operations
Shape factor for a cylinder whose length equals its diameter is

2.0
1.5
1.0
0.5

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