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Mechanical Operations

Mechanical Operations
__________ mills are termed as disintegrators.

All of these
Cage
Compartment
Pebble

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Mechanical Operations
Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the

Cage mill
Bradford's breaker
Stamp mill
Blake jaw crusher

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Mechanical Operations
Filtration should be stopped in a filter press, if the

Filtration pressure rises suddenly
Liquor stops flowing out to the discharge
Cake becomes very dense
Both A & B

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Mechanical Operations
With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge

Remains constant
Increases linearly
Decreases
Increases

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Mechanical Operations
In bag filters, filter fabrics are never made of

Metallic wire woven mesh
Nylon fibres
Polyester fibres
Cotton fibres

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Mechanical Operations
Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid?

Plate and frame filter press
Sand bed filter
Vacuum filter
Batch basket centrifuge

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