______________________ balls capable of grinding the feed in a ball mill gives the maximum efficiency ?

Related Mcqs:

Mixing mechanism employed in a pan mixer is by ________________?

A. Mulling B. Kneading C. Dispersion D. None of these...

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?

A. 6.V/D.S B. V/6D.S C. D.S/V D. V/D.S...

In a grinding operation, the limiting particle size is the size of the _______________ particle in the sample?

A. Smallest B. Largest C. Either A. or B. D. Neither A. nor B....

Limestone is normally crushed in a _____________________?

A. Roll crusher B. Hammer crusher C. Ball mill D. Tube mill...

Pick out the correct statement?

A. The capacity and the effectiveness of a screen are the same B. The capacity and the effectiveness of screen are opposing factors C. The screening surface of a ‘reel’ (a revolving screen used in flour mills) is made of silk bolting cloth supported by wire mesh D. Both B. and C....