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Mechanical Operations

Mechanical Operations
Balls for ball mills are never made of

Lead
Alloy steel
Cast iron
Forged/cast steel

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Mechanical Operations
Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid.

Density
Thermal conductivity
Viscosity
Surface tension

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Mechanical Operations
Separation of materials into products based on the difference of their sizes is called

Classification
Sizing
Flocculation
Sorting

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Mechanical Operations
Weber number is significant and is concerned with the

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

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Mechanical Operations
Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

1/D2.5
D
1/D
D2.5

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Mechanical Operations
Mesh indicates the number of holes per

Square foot
Linear foot
Linear inch
Square inch

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