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Mechanical Operations

Mechanical Operations
Which one is a filter aid?

Convas fabric
None of these
Diatomaceous earth
Calcined lime

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Mechanical Operations
Size reduction does not occur due to compression in case of

Gyratory crushers
Smooth roll crushers
Rod mills
Jaw crushers

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Mechanical Operations
There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores.

Tabling
Jigging
Classification
Froth floatation

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Mechanical Operations
Size reduction mechanism used in Jaw crushers is

Attrition
Compression
Impact
Cutting

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Mechanical Operations
Sphericity of pulverised coal is

∞
>1
1

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Mechanical Operations
General mechanism of size reduction in intermediate and fine grinder is by

Cutting action
Compression and tearing
Impact and attrition
Compression

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