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Mechanical Operations

Mechanical Operations
Which is the most suitable conveyor for transportation of sticky material?

Pneumatic conveyor
Belt conveyor
Screw conveyor
Apron conveyor

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Mechanical Operations
The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter.

Rotary
Plate & frame
Sand
Vacuum

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Mechanical Operations
For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as

√d
1/d
D²
D

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Mechanical Operations
A tube mill as compared to a ball mill

Gives finer size reduction but consumes more power
Has larger length/diameter ratio (>2 as compared to 1 for ball mill)
All of these
Employs smaller balls

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Mechanical Operations
Filter medium resistance is that offered by the

Embedded particles in the septum
None of these
Filter cloth
Filter cloth and the embedded particle collectively

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Mechanical Operations
Fluid medium used in the classification technique of mineral beneficiation is

Both A & B
Water
Neither A nor B
Air

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