Chemical Engineering - Mechanical Operations

1.
Energy consumed for crushing one ton of material ranges from __________ kWh.
0.01 to 0.1
0.5 to 1.5
2 to 3.5
4 to 5.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
For transporting pasty material, one will use a/an
apron conveyor
belt conveyor
screw colaveyor
bucket elevator
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a
disc bowl centrifuge.
sharpies supercentrifuge.
batch basket centrifuge.
sparkler filter.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
A tube mill compared to a ball mill
has a higher length/diameter ratio.
produces a coarser product.
has a higher diameter/length ratio.
uses much larger balls.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Trommels separate a mixture of particles depending on their
size
density
wettability
electrical & magnetic properties
Answer: Option
Explanation:
No answer description is available. Let's discuss.