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Mechanical Operations

Mechanical Operations
Shape factor for a cylinder whose length equals its diameter is

1.5
1.0
0.5
2.0

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Mechanical Operations
Which of the following conveyors cannot be recommended for transportation of abrasive materials?

Flight conveyor
Apron conveyor
Chain conveyor
Belt conveyor

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

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

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Mechanical Operations
Which of the following achieves the least reduction ratio for a given feed size?

Gyratory crusher
Roll crusher
Jaw crusher
Cone crusher

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Mechanical Operations
Equivalent diameter of a particle is the diameter of the sphere having the same

Ratio of volume to surface as the particle
Volume as the particle
Ratio of surface to volume as the actual volume
None of these

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Mechanical Operations
The process by which fine solids is removed from liquids is termed as

Decantation
Flocculation
Classification
Sedimentation

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