To remove very small amount of tiny solid impurities from liquid, we use a_____________________?

A. Diameter of the rolls
B. Speed of the rolls
C. Product size
D. Feed size

A. Banbury mixer
B. Pan mixer
C. Pug mill
D. Charge can mixer

A. Hydrocyclone
B. Classifier
C. Dorr-thickener
D. Sedimentation tank

A. Wet grinding achieves a finer product size than dry grinding
B. Its capacity decreases with increasing fineness of the products
C. Grinding cost and power requirement increases with increasing fineness of the products
D. All A., B. and C

A. Belt conveyor
B. Bucket elevator
C. Screw conveyor
D. Apron conveyor

A. Attrition
B. Impact
C. Both A. & B.
D. Neither A. nor B.