Chemical Engineering - Process Equipment and Plant Design

21.
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle ?
Segmental baffle
Flat plate extending across the wall
Disk type baffle
Helical type baffle
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design
only if the opening is on spherical vessel.
only if the opening is on a vertical cylinderical vessel.
only if the opening is on a horizontal cylinderical vessel.
irrespective of the shape of the vessel.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
In a __________ rivetted joint, the number of rivets decreases from the innermost row to the outermost row.
chain
diamond
zig-zag
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness.
1 to 5
10 to 20
30 to 40
40 to 50
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is
same
less
about 3 times
about 0.33 times
Answer: Option
Explanation:
No answer description is available. Let's discuss.