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Mechanical Operations

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

Collector
Frother
Activator
Modifier

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Mechanical Operations
The capacity of a pneumatic conveying system depends upon the

Bulk density of materials
Pressure of the conveying air
Diameter of the conveying line
All of these

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Mechanical Operations
Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor.

Screw
Ribbon
Slat or drag
Flight

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Mechanical Operations
Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill.

Vibratory
None of these
Roll
Impact

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Mechanical Operations
A propeller agitator

Produces mainly axial flow
Runs at very slow speed (2 rpm)
Is used for mixing high viscosity pastes
All of these

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Mechanical Operations
Fluid energy mill comes in the category of

Ultrafine grinder
Crusher
Cutter
Grinder

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