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Mechanical Operations

Mechanical Operations
Fick's law relates to

Energy consumption
Feed size
None of these
Final particle size

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Mechanical Operations
Which of the following is not an industrial screening equipment?

Vibrating screen
Grizzly
Trommel
Sharpies centrifuge

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Mechanical Operations
If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by

Φs = 6 Vp/dp sp
Φs = 6 dp Sp/Vp
Φs = dp Sp/Vp
Φs = Vp/dp sp

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Mechanical Operations
In a roll crusher, the specific power consumption and the production rate is affected by the

Reduction ratio
Neither A nor B
Differential roll speed
Both A & B

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Mechanical Operations
Mixer used for rubber compounding is

Mixer-extruder
Muller mixer
Pug mill
Banbury internal mixer

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Mechanical Operations
Which of the following conveyors cannot be recommended for transportation of abrasive materials?

Chain conveyor
Belt conveyor
Flight conveyor
Apron conveyor

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