Chemical Engineering - Process Equipment and Plant Design

26.
Baffles may be eliminated for
low viscosity liquids (< 200 poise).
high viscosity liquids (> 600 poise).
large diameter tanks.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency
increases
decreases
remains same
may increase or decrease depending upon the plate spacing
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.
25-50
50-75
200-250
750-1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
For pipe flows, head is proportional to __________ at constant capacity (where D = pipe diameter ).
1/D
1/D2
1/D5
D2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
Friction factor for turbulent flow in a new pipe is given by
f = 0.22 NRe0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.