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Mechanical Operations

Mechanical Operations
Mixing of plastic solids is generally facilitated by

None of these
Dispersion
Mastication
Kneading

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Mechanical Operations
Which of the following conveyors cannot be recommended for transportation of abrasive materials?

Belt conveyor
Apron conveyor
Flight conveyor
Chain conveyor

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Mechanical Operations
Ultracentrifuges running at speeds upto 100000 rpm is normally used for the

Separation of isotopes based on their density or molecular weights difference
Dewaxing of lubricating oil
Separation of cream from milk
Concentration of rubber latex

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Mechanical Operations
Crushing efficiency of a machine ranges between __________ percent.

50 to 70
0.1 to 2
20 to 25
5 to 10

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Mechanical Operations
Dry powdery solid materials are transported by a __________ conveyor.

None of these
Bucket
Belt
Screw

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Mechanical Operations
The work index in Bond's law for crushing of solids has the following dimensions

KWh/ton
No units (dimensionless)
KWh.m1/2/ton
KW/ton

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