1.
Stamp mills are generally used for crushing

2.
For achieving maximum capacity of the ball mill, the ball charge should be equal to about __________ percent of the ball mill volume.

3.
Pick out the wrong statement:

4.
Removal of activated carbon from glycerine is done by

5.
To get a fine talc powder from its granules, the equipment used is

6.
Ultrafine grinders operate principally by

7.
For a non-spherical particle, the sphericity

8.
For spheres, the specific surface shape factor is given by

9.
Separation of materials into products based on the difference of their sizes is called

10.
For the preliminary breaking of hard rock, we use a

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