Grinding efficiency of a ball mill is of the order of _______________ percent?

Related Mcqs:

Flow of filtrate through the cake in a plate and frame filter press is best described by the ______________ equation?

A. Kozeny-Carman B. Hagen-Poiseuille’s C. Fanning’s D. Kremser...

Removal of activated carbon from glycerine is done by _________________?

A. Plate and frame filter B. Rotary vacuum filter C. Batch basket centrifuge D. None of these...

Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called__________________?

A. Classification B. Froth floatation C. Thickening D. Clarification...

The main differentiation factor between tube mill and ball mill is the ___________________?

A. Length to diameter ratio B. Size of the grinding media C. Final product size D. Operating speed...

A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is_____________?

A. 0.1 B. 0.4 C. 0.6 D. None of these...