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Mechanical Operations

Mechanical Operations
Cyclones are used primarily for separating

Liquids
Solids from fluids
Solids
Solids from solids

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Mechanical Operations
Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of

Bronze
Stainless steel
Concrete
Flint or porcelain

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Mechanical Operations
Removal of activated carbon from glycerine is done by

Rotary vacuum filter
Plate and frame filter
None of these
Batch basket centrifuge

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Mechanical Operations
For separation of sugar solution from settled out mud, we use a __________ filter.

Rotary drum vaccum
Centrifugal
Sparkler
Plate and frame

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Mechanical Operations
In constant pressure filtration,

Rate of filtration decreases with time
Resistance decreases with time
Rate of filtration is constant
Rate of filtration increases with time

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Mechanical Operations
__________ balls capable of grinding the feed in a ball mill gives the maximum efficiency.

Elliptical
Minimum size
Maximum size
Cast iron

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