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Mechanical Operations

Mechanical Operations
Screen capacity is expressed in terms of

Tons/ft²
Tons/hr
Both A & B
Tons/hr-ft²

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Mechanical Operations
A gravity decanter is meant for the separation of two __________ density.

Immiscible liquids of different
Miscible liquids of same
Immiscible liquids of same
Miscible liquids of different

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Mechanical Operations
Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a

Disc bowl centrifuge
Batch basket centrifuge
Sparkler filter
Sharpies supercentrifuge

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Mechanical Operations
In screen analysis, the notation +5 mm/-10 mm means particles passing through

Neither 5 mm nor 10 mm screen
5 mm screen and retained on 10 mm screen
10 mm screen and retained on 5 mm screen
Both 5 mm and 10 mm screens

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Mechanical Operations
Weber number is significant and is concerned with the

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

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Mechanical Operations
Basic slag is not ground in

Tube mills
Jaw crushers
Ball mills
Compartment mills

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