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Mechanical Operations

Mechanical Operations
Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is

0.5
√3
√2
1

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Mechanical Operations
Use of grinding aids results in the

Enhanced production rate
Both A & B
Finer products
Neither A nor B

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Mechanical Operations
Wheat is ground into flour in a

Impact mill
Roller crusher
Hammer crusher
Fluid energy mill

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Mechanical Operations
Weber number is significant and is concerned with the

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

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Mechanical Operations
The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is

1.5
1
None of these
?2

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Mechanical Operations
Gravity stamp mill is meant for the __________ crushing.

Fine
Ultrafine
Primary
Intermediate

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