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Mechanical Operations

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

Collector
Frother
Modifier
Activator

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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
Specific gravity
None of these

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Mechanical Operations
Which of the following terminology is not used for size reduction of materials to fine sizes or powders?

Comminution
Dispersion
Compression
Pulverisation

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Mechanical Operations
Filter medium resistance is that offered by the

None of these
Filter cloth and the embedded particle collectively
Embedded particles in the septum
Filter cloth

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

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

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Mechanical Operations
The grinding in a hammer crusher takes place due to the

Impact
Both A & B
Attrition
Neither A nor B

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