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Mechanical Operations

Mechanical Operations
Ore concentration by jigging is based on the difference in the __________ of the particles.

Specific gravities
Shape
None of these
Wettability

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Mechanical Operations
Two particles are called to be equal settling, if they are having the same.

Size
Terminal velocities in the same fluid & in the same field of force
None of these
Specific gravity

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

Tabling
Froth floatation
Jigging
Classification

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Mechanical Operations
Mixing mechanism employed in a pan mixer is by

Mulling
Kneading
None of these
Dispersion

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Mechanical Operations
A tube mill compared to a ball mill

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

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Mechanical Operations
The maximum slope of a belt conveyor can be

60°
45°
30°
15°

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