Chemical Engineering - Process Equipment and Plant Design

26. 

In a multipass shell and tube heat exchanger, the shell side cross flow area does not depend upon

A. baffle spacing
B. clearance
C. pitch
D. none of these

Answer: Option D

Explanation:

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27. 

Two iron pipes of the same nominal diameter but different schedule numbers will have the same

A. inside diameter
B. outside diameter
C. wall thickness
D. none of these

Answer: Option A

Explanation:

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28. 

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m2.°C.

A. 1250
B. 2500
C. 7500
D. 15000

Answer: Option C

Explanation:

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29. 

Pick out the wrong statement

A. For all the cylindrical process vessels operating above atmospheric pressure, formed heads are used for closing the vessel.
B. Fouling factor of river water is less than that of sea water.
C. Risers provided in bubble cap trays in the distillation column facilitate the flow of both liquid and vapor.
D. both (b) and (c).

Answer: Option D

Explanation:

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30. 

Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

A. 5
B. 20
C. 35
D. 55

Answer: Option B

Explanation:

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