For efficient grinding, ball mills must be operated (A) At a speed less than the critical speed (B) At a speed more than the critical speed (C) At a speed equal to the critical speed (D) With minimum possible small balls

For efficient grinding, ball mills must be operated
(A) At a speed less than the critical speed
(B) At a speed more than the critical speed
(C) At a speed equal to the critical speed
(D) With minimum possible small balls
by

1 Answer

Answer :

(A) At a speed less than the critical speed
by

Related questions

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