Chemistry Test Preparations On Mechanical Operations Part 2

Test Preparation on Chemistry Test Preparations On Mechanical Operations Part 2

1.

Jigging is a technique by which different particles can be

1separated by particle size.
2separated by particle density.
3separated by particle shape.
4mixed

2.

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.

1impact
2roll
3vibratory
4none of these

3.

Balls for ball mills are never made of

1forged/cast steel
2lead
3cast iron
4alloy steel

4.

__________ is the most commonly used 'filter aid'.

1Diatomaceous earth
2Fuller's earth
3Vermiculite
4Semi-plastic clay

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