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Mechanical Operations

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

Frother
Activator
Modifier
Collector

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Mechanical Operations
Vibrating screens have capacity in the range of __________ tons/ft² .mm mesh size.

50 to 100
0.2 to 0.8
5 to 25
100 to 250

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Mechanical Operations
To get ultrafine particles, the equipment used is a

Ball mill
Rod mill
Fluid energy mill
Hammer crusher

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Mechanical Operations
In case of a hammer crusher, the final product size depends on the

Clearance between hammer & grinding plates
Feed rate
Rotor speed
All of these

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Mechanical Operations
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the

Ultimate strength of the material
State or manner of application of the crushing force
Elastic constant of the material
All of these

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

Cutting action
Compression
Impact and attrition
Compression and tearing

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