61. A tube mill compared to a ball mill
62. __________ are mixed using ribbon blenders.
63. For benefication of iron ore, the most commonly used method is
64. For sizing of fine materials, the most suitable equipment is a
65. Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a
66. Grinding efficiency of a ball mill is of the order of __________ percent.
67. In filtration, the use of 'filter aid' helps in
68. Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )
69. In screen analysis, the notation +5 mm/-10 mm means particles passing through
70. Flow of filtrate through the cake in a plate and frame filter press is best described by the __________ equation.
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