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Mechanical Operations

Mechanical Operations
Mixer used for rubber compounding is

Mixer-extruder
Banbury internal mixer
Pug mill
Muller mixer

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Mechanical Operations
The most suitable equipment for the transportation of 200 mesh size particles is a

Belt conveyor
Pneumatic conveyor
Bucket elevator
Screw conveyor

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Mechanical Operations
Highly viscous liquids & pastes are agitated by

Turbine agitators
None of these
Multiple blade paddles
Propellers

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Mechanical Operations
Screen capacity is proportional to (where, S = screen aperture)

1/S
S²
√S
S

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Mechanical Operations
Balls for ball mills are never made of

Forged/cast steel
Lead
Alloy steel
Cast iron

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Mechanical Operations
Which of the following is used for primary crushing of very hard lumpy materials?

Tube mill
Gyratory crusher
Ball mill
Toothed roll crusher

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