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Mechanical Operations

Mechanical Operations
Fick's law relates to

Energy consumption
Final particle size
Feed size
None of these

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Mechanical Operations
Tube mill compared to ball mill

Produces finer products
Is long in comparison with its diameter
All of these
Uses smaller balls

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Mechanical Operations
Which of the following must be stored in silos and not in open yard?

Coke breeze
Sand
None of these
High V.M. bituminous coal

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Mechanical Operations
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Electromagnets
Cams or eccentric shafts
Unblanced fly wheels
Either A, B or C

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Mechanical Operations
Mass flow of granular solid (M) through a circular opening of dia, D follows

M ∝ D²
M ∝ √D
M ∝ D³
M ∝ D

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Mechanical Operations
Use of 'grinding aids' is done in __________ grinding.

Intermediate
Wet
Dry
Ultrafine

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