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Mechanical Operations

Mechanical Operations
Fibrous material is broken by a

Rollcrusher
Tube mill
Squirrel-cage disintegrator
Ball mill

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Mechanical Operations
According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than

1.84
0.00184
0.184
0.0184

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Mechanical Operations
To produce talcum powder, use

Ball mill
Jet mill
Pin mill
Hammer mill

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Mechanical Operations
Weber number is significant and is concerned with the

Solid-liquid mixing
Suspension of solid in liquid
Liquid-liquid mixing
Dispersion of liquid in liquid

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Mechanical Operations
Colloid mills achieve size reduction mainly by

Cutting
Compression
Attrition
Impact

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Mechanical Operations
Ore concentration by jigging is based on the difference in the __________ of the particles.

None of these
Wettability
Specific gravities
Shape

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