21. Handling of ashes and similar materials can be done best by a __________ conveyor.
22. Bond crushing law
23. Compressibility co-efficient for an absolutely compressible cake is
24. Cake resistance is
25. Helical screw agitator is used for
26. In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced.
27. Weber number is significant and is concerned with the
28. With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge
29. Chance process is used for the
30. What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls?
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