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Mechanical Operations

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

None of these
Belt
Pneumatic
Screw

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Mechanical Operations
__________ mills are termed as impactors.

None of these
Hammer
Rolling-compression
Cage

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Mechanical Operations
Ultra centrifuges are used for the separation of __________ solid particles.

Colloidal
Coarse
Fine
Dissolved

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Mechanical Operations
Moisture can be removed from lubricating oil using

Vacuum leaf filter
Tubular centrifuge
Sparkler filter
Clarifier

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Mechanical Operations
For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter)

π(=A/D²)
AD/V
None of these
π/6(=V/D³)

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Mechanical Operations
Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

1/D
1/D2.5
D
D2.5

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