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Mechanical Operations

Mechanical Operations
For coarse reduction of hard solids, use

Compression
Impact
Attrition
Cutting

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Mechanical Operations
In a grinding operation, the limiting particle size is the size of the __________ particle in the sample.

Largest
Smallest
Either A or B
Neither A nor B

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Mechanical Operations
Chance process is used for the

Water treatment
Cleaning of coal
Concentration of iron ore
Concentration of pyrites

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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
Vacuum filter
Batch basket centrifuge
Sand bed filter

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Mechanical Operations
Fibrous material is broken by a

Rollcrusher
Ball mill
Squirrel-cage disintegrator
Tube mill

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Mechanical Operations
Balls for ball mills are never made of

Alloy steel
Forged/cast steel
Lead
Cast iron

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