Chemical Engineering - Mechanical Operations

16.
According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively).
(S/V)p
(S/V)p
(S/V)2p
(S/V)f
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ?
Rittinger's law
Kick's law
Bond's law
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
Electrical energy consumed by a jaw crusher is not a function of the
average feed size
average product size
machine capacity
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
Size reduction mechanism used in Jaw crushers is
attrition
compression
cutting
impact
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
Trommels employ __________ for screening of materials.
fibrous cloth
woven wire screen
punched plate
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.