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Mechanical Operations

Mechanical Operations
Which of the following is not categorised as a "mechanical operation"?

Size enlargement
Filtration
Agitation
Humidification

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Mechanical Operations
For efficient grinding, ball mills must be operated

At a speed less than the critical speed
At a speed more than the critical speed
At a speed equal to the critical speed
With minimum possible small 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
In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is

1/2
1
4
1/4

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Mechanical Operations
A fluid energy mill is used for

Crushing
Ultra grinding
Grinding
Cutting

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Mechanical Operations
Filtration capacity of a rotary drum vacuum filter depends upon the

Both A & B
Neither A nor B
Cake thickness
Characteristics of the feed slurry

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