A. Size
B. Specific gravity
C. Terminal velocities in the same fluid & in the same field of force
D. None of these
A. D2
B. Dp
C. 1/Dp
D. 1/D2p
A. Employs smaller balls
B. Gives finer size reduction but consumes more power
C. Has larger length/diameter ratio (>2 as compared to 1 for ball mill)
D. All A., B. and C.
A. Specific surface ratio
B. Shape factor
C. Sauter diameter
D. Surface area per unit mass
A. A batch filter
B. Not suitable, if the liquid is the main product
C. Having prohibitively high maintenance cost
D. Not suitable for wide range of materials under varying operating conditions of cake thickness
and pressure
A. Electrostatic precipitator
B. Cyclone separator
C. Strainer
D. None of these
A. Classifier
B. Cyclone separator between mill & classifier
C. Both A. & B.
D. Neither A. nor B.