Question
Pharmaceutical Engineering Question on Size reduction and size separation
How much can be the working revolution per minute (RPM) of the ball mill
A
23-28 "D where D means the diameter of jar
B
Two times more than the critical revolution per minute
C
42.3 "D (D=diameter of the jar)
D
The average of critical RPM and the optional RPM
Answer
23-28 "D where D means the diameter of jar
Explanation
Solution
The correct option is (A) : 23-28 "D where D means the diameter of jar