A. Titanium oxide
B. Calcium oxide
C. Cobalt oxide
D. Manganese oxide
A. (1/2π). √(g/r)
B. (1/π). √(g/r)
C. ½ √(g/r)
D. 2π. √(g/r)
A. Sodium silicate
B. Quartz
C. Lime
D. Alumina
A. Calls for relatively less energy for the smaller product particles, than does the Rittinger law
B. Is less realistic in estimating the power requirements of commercial crushers
C. States that the work required to form particle of any size from very large feed is proportional
to the square root of the volume to surface ratio of the product
D. States that the work required for the crushing is proportional to the new surface created
A. Plug
B. Turbulent
C. Laminar
D. None of these
A. 0.007
B. 0.30
C. 50
D. 0.014
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.