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Mechanical Operations

Mechanical Operations
The process opposite to 'dispersion' is termed as the

Filtration
Sedimentation
Flocculation
None of these

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Mechanical Operations
Grinding efficiency of a ball mill is of the order of __________ percent.

43835
90-95
40-50
75-80

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Mechanical Operations
Which of the following is not used as a surface active agent in a flocculation operation?

Sodium silicate
Alumina
Quartz
Lime

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Mechanical Operations
The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter.

Rotary
Sand
Plate & frame
Vacuum

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Mechanical Operations
__________ baffles are provided in ball mills.

Horizontal
None of these
No
Only two

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Mechanical Operations
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their

None of these
Densities
Terminal velocities
Particle sizes

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