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Mechanical Operations

Mechanical Operations
In froth floatation, chemical agent added to cause air adherence is called

Collector
Activator
Modifier
Frother

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Mechanical Operations
Which of the following is used for primary crushing of very hard lumpy materials?

Toothed roll crusher
Tube mill
Ball mill
Gyratory crusher

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Mechanical Operations
Fick's law relates to

Final particle size
Feed size
Energy consumption
None of these

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Mechanical Operations
The crushed material received for separation is called feed or

Middling
Concentrate
Tailing
Heading

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Mechanical Operations
Percentage of drum submerged in the slurry in case of rotary drum filter is

3
30
85
25

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Mechanical Operations
Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an

Venturi scrubber
Air filter
Bag filter
Hydrocyclones

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