21. Filtration capacity of a rotary drum vacuum filter depends upon the
22. __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.
23. Moisture can be removed from lubricating oil using
24. The capacity of a pneumatic conveying system depends upon the
25. In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the
26. For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is
27. Which one is a filter aid?
28. Which of the following is not a cutting machine?
29. Which of the following is not a wet classifier?
30. Pick out the wrong statement.
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