Pick out the material having minimum Rittinger's number.
Answer: Option B
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__________ mills are termed as impactors.
Answer: Option A
In case of a revolving mill, wet grinding compared to dry grinding
To get a fine talc powder from its granules, the equipment used is
Answer: Option C
For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is
Answer: Option E
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