A. 1 – 2
B. 15 – 20
C. 40 – 50
D. 60 – 75
A. Classification
B. Sedimentation
C. Clarification
D. Decantation
A. Operate at higher speed
B. Employ bowl of larger diameter
C. Can’t be operated under pressure/vacuum
D. Can’t be used for separation of fine suspended solids from a liquid
A. N ∝ 1/√D
B. N ∝ √D
C. N ∝ D
D. N ∝ 1/D
A. Impact
B. Compression
C. Attrition
D. Cutting
A. Venturi atomiser
B. Gravity settling chamber
C. Electro-static precipitator
D. Cyclone separator
A. Sharpies super-centrifuge
B. Hydrocyclones
C. Dorr Oliver rake classifier
D. None of these