Chemical Engineering - Mechanical Operations

36.
Which of the following achieves the least reduction ratio for a given feed size?
Jaw crusher
Roll crusher
Cone crusher
Gyratory crusher
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
A fluid energy mill is used for
cutting
grinding
ultragrinding
crushing
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
Filtration should be stopped in a filter press, if the
cake becomes very dense.
liquor stops flowing out to the discharge.
filtration pressure rises suddenly.
both(b)&(c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
For coarse reduction of hard solids, use
impact
attrition
compression
cutting
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing.
primary
secondary
fine
ultrafine
Answer: Option
Explanation:
No answer description is available. Let's discuss.