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Mechanical Operations

Mechanical Operations
For the transportation of ultrafine particles, the equipment used is a........conveyor.

Screw
Belt
Pneumatic
None of these

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Mechanical Operations
Cement clinker is reduced to fine size by a

Roll crusher
Ball mill
Tube mill
Hammer mill

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Mechanical Operations
Mesh indicates the number of holes per

Square foot
Linear inch
Square inch
Linear foot

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Mechanical Operations
Equivalent diameter of a particle is the diameter of the sphere having the same

Ratio of volume to surface as the particle
Ratio of surface to volume as the actual volume
None of these
Volume as the particle

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Mechanical Operations
Feed size of ≥ 25 cms can be accepted by

Rod mill
Ball mill
Fluid energy mill
Jaw crusher

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Mechanical Operations
Coal is finally pulverised to 200 mesh size for burning in boilers by a

Roll crusher
Ball mill
Hammer crusher
Gyratory crusher

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