1. Length/diameter ratio of a ball mill is
2. The optimum moisture content in solids to be crushed/ground ranges from __________ percent.
3. Apron conveyors are used for
4. Carbon black is pulverised in a
5. Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.
6. Ball mills and tube mills with flint or porcelain balls are used for size reduction of
7. Shell and leaf filter as compared to plate and frame filter
8. As particle size is reduced
9. In case of grinding in a ball mill
10. Pine oil used in froth floatation technique acts as a/an
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