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Chemical Engineering - Process Equipment and Plant Design

Exercise : Process Equipment and Plant Design - Section 4
36.
Pick out the correct statement.
It is preferred to use a vertical condenser for condensation of vapor from a distillation column without sub-cooling
Draining of residual liquid on tray during shut down of distillation column is facilitated by weep holes.
Random packing a packed tower offers the advantage of lower pressure drop and higher throughput of fluids as compared to regular/stacked packing.
Risers are generally not connected to the plate in a distillation coloumn by bolts, rivets or welding.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
"A claming section" before the liquid flows into the downcomer is privided to
permit release of entrained vapour in the liquid.
reduce the discharge fluctuation.
ensure better vapour-liquid contact.
cool the liquid before it flows down.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
The units of Young's modulus of elasticity and __________ are the same.
strain
stress
modular ratio
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In the design of a shell and tube heat exchanger, the corrosion allowance
need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc.
for carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm.
for internal cover and tube sheet is provided on both the sides.
all (a), (b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when
hydrostatic head is required for refluxing the condensate.
only the function of condensation is to be carried out.
sub cooling of condensate is desired.
both the functions of condensation & sub cooling are carried out in a single unit.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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