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Mechanical Operations

Mechanical Operations
Size reduction does not occur due to compression in case of

Gyratory crushers
Smooth roll crushers
Rod mills
Jaw crushers

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Mechanical Operations
Energy consumption in a crusher decreases with increase in the

Size of feed (at constant reduction ratio)
All of these
Size of the product (at constant feed size)
Capacity of the crushing machine

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Mechanical Operations
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the

State or manner of application of the crushing force
Ultimate strength of the material
All of these
Elastic constant of the material

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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
Increases linearly
Decreases

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Mechanical Operations
__________ is used for producing a thick suspension from a thin slurry.

Pressure filter thickener
Cartridge filter
Plate and frame filter press
Rotary drum vacuum filter

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Mechanical Operations
A fluid energy mill is used for

Ultra grinding
Crushing
Cutting
Grinding

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MORE MCQ ON Mechanical Operations

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