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Mechanical Operations

Mechanical Operations
__________ baffles are provided in ball mills.

Horizontal
No
Only two
None of these

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Mechanical Operations
The sphericity of a solid particle of cubical shape is

π/3
(π/6)1/3
(π/6)1/2
π

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Mechanical Operations
__________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution.

Tumbler
Rubbon blender
Muller
Banbery

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Mechanical Operations
Ultra centrifuges are used for the separation of __________ solid particles.

Colloidal
Dissolved
Fine
Coarse

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Mechanical Operations
Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill.

Roll
Impact
Vibratory
None of these

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Mechanical Operations
Which of the following is the most suitable for handling fibrous and dense slurries?

Cone type agitator
Turbine agitator
Propeller agitator
Radial propeller agitator

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