Chemical Engineering - Mechanical Operations

11.
__________ balls capable of grinding the feed in a ball mill gives the maximum efficiency.
Cast iron
Minimum size
Maximum size
Elliptical
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
The speed of a rotary drum vacuum filter may be about __________ rpm.
1
50
100
500
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
Colloid mills achieve size reduction mainly by
impact
attrition
cutting
compression
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Mesh indicates the number of holes per
square inch
linear inch
square foot
linear foot
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
For achieving maximum capacity of the ball mill, the ball charge should be equal to about __________ percent of the ball mill volume.
10
25
50
75
Answer: Option
Explanation:
No answer description is available. Let's discuss.