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Mechanical Operations

Mechanical Operations
Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is

0.5
√2
√3
1

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Mechanical Operations
Ball mill is used for

Crushing
Fine grinding
Attrition
Coarse grinding

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Mechanical Operations
__________ mill is not a revolving mill.

Tube
Pebble
Compartment
Cage

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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

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

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Mechanical Operations
Mixer used for rubber compounding is

Pug mill
Muller mixer
Mixer-extruder
Banbury internal mixer

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

Increases linearly
Increases
Decreases
Remains constant

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