A. Attrition
B. Compression
C. Cutting
D. None of these
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on the material being ground
A. Packed wet
B. Hollow wet
C. Venturi
D. Co-current
A. Size
B. Density
C. Wettability
D. Electrical & magnetic properties
A. 10 mm screen and retained on 5 mm screen
B. 5 mm screen and retained on 10 mm screen
C. Both 5 mm and 10 mm screens
D. Neither 5 mm nor 10 mm screen
A. Results in increased capacity
B. Consumes less power
C. Consumes more power
D. Both A. and C.
A. Nc = (1/4π). √(g/R1 – R2)
B. Nc = (1/2π). √(g/R1 – R2)
C. Nc = (1/π). √(g/R1 – R2)
D. Nc = (1/2π). √(R1 – R2/g)