Ball mills and tube mills with flint or porcelain balls are used for size reduction of
A. Asbestos
B. Rubber
C. Non-metallic ores
D. Limestone
Answer: Option C
Related Questions on Mechanical Operations
A. Rittinger's law
B. Kick's law
C. Bond's law
D. None of these
Traces of solids are removed from, liquid in a
A. Classifier
B. Clarifier
C. Sparkler filter
D. Rotary vacuum filter
Which of the following is not categorised as a "mechanical operation"?
A. Agitation
B. Filtration
C. Size enlargement
D. Humidification
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