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Mechanical Operations

Mechanical Operations
For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as

D²
1/d
√d
D

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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
Handling of ashes and similar materials can be done best by a __________ conveyor.

Belt
Ribbon
Flight
Drag or slat

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Mechanical Operations
Which of the following is not a non-metalliferous mineral?

Calcite
Cassiterrite
Quartz
Fluorspar

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

16°
32°
52°
64°

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Mechanical Operations
Pine oil used in froth floatation technique acts as a/an

Modifier
Collector
Activator
Frother

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