Which of the following statements are incorrect about Baffles in a Shell and Tube HE?

The most common type of baffle is segmental baffles

Baffles provide mechanical support to the tubes and help them to be in position

Baffles streamline the motion of the fluid in Shell side and hence decreases the turbulence

The most common type of baffle is segmental baffles

Baffles increase the overall heat transfer coefficient on the shell side

When a fluid is used in a Shell and Tube heat exchanger, which one of the following is not true?

Fins increase necessary heat transfer area

If the fluid is gas then the gas side heat transfer coefficient is the lowest

Extended fins are used on the shell side to increase the Heat Transfer coefficient

Baffles are provided only to work as fins

Fins increase necessary heat transfer area

What can we infer from the name 2-4 Shell and Tube Heat Exchanger?

Partition of the Shell into two three passes of the tube

Partition of the Shell into two and four passes of the tube

Partition of the Shell into two three passes of the tube

One Shell and Four pass of the tube

Partition of the Shell into three four passes of the tube

In an operation where we want to heat a stream of liquid by Steam, we have the option to use extended fins. Then which of the following is best suited?

Steam on the tube side with the fins on outer surface of the tube

Steam on the shell side with the fins on outer surface of the tube

Steam on the tube side with the fins on outer surface of the tube

Steam on the shell side with the fins on inner surface of the tube

Steam on the tube side with the fins on inner surface of the tube

Consider we have a 1-2 Shell and Tube Heat Exchanger with tube diameter 20mm and shell diameter 55mm, we have two fluids A&B, A is supply water and B is distilled water, we desire to have their flow rates as 15m3/s and 21m3/s respectively. Which fluid pass arrangement would be best suited for the HE?

Counterflow with A in tube and B in the shell side

Parallel flow with A in tube and B in the shell side

Counterflow with B in tube and A in the shell side

Counterflow with A in tube and B in the shell side

Parallel flow with B in tube and A in the shell side

10 + Mcqs in HT Equipment Shell and Tube Heat Exchangers in Heat Transfer Operations Page 1 McqOptions

1.	Which one of the following figures correctly represents counter-flow operation of a shell and tube heat exchanger with the specific heat of fluid in the shell side more than the fluid in the tube side?
A.	<a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12a.png"><img alt="Figure represents counter-flow operation of shell & tube heat exchanger - option a" class="alignnone size-full wp-image-246586" height="292" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12a.png" width="274"/></a>
B.	<a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12b.png"><img alt="Figure represents counter-flow operation of shell & tube heat exchanger - option b" class="alignnone size-full wp-image-246587" height="283" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12b.png" width="261"/></a>
C.	<a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12c.png"><img alt="Figure represents counter-flow operation of shell & tube heat exchanger - option c" class="alignnone size-full wp-image-246588" height="294" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12c.png" width="269"/></a>
D.	<a href="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12d.png"><img alt="Figure represents counter-flow operation of shell & tube heat exchanger - option d" class="alignnone size-full wp-image-246589" height="296" sizes="(max-width: 263px) 100vw, 263px" src="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12d.png 263w, https://www.sanfoundry.com/wp-content/uploads/2019/09/heat-transfer-operations-questions-answers-shell-tube-heat-exchangers-q12d-200x225.png 200w" width="263"/></a>
Answer» E.

Discussion

2.	For the calculation of Overall Heat transfer coefficient U_D, for given fouling factor R_f and Dirt Factor R_d, which one of the following expressions do we use?
A.	(U<sub>C</sub><sup>-1</sup> + R<sub>d</sub><sup>-1</sup>+ R<sub>f</sub>)<sup>-1</sup>
B.	(U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub>)<sup>-1</sup>
C.	(U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub><sup>-1</sup>)
D.	(U<sub>C</sub><sup>-1</sup> + R<sub>d</sub> + R<sub>f</sub>)
Answer» C. (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub><sup>-1</sup>)

Discussion

3.	Which of the following statements are incorrect about Baffles in a Shell and Tube HE?
A.	Baffles provide mechanical support to the tubes and help them to be in position
B.	Baffles streamline the motion of the fluid in Shell side and hence decreases the turbulence
C.	The most common type of baffle is segmental baffles
D.	Baffles increase the overall heat transfer coefficient on the shell side
Answer» C. The most common type of baffle is segmental baffles

Discussion

4.	When a fluid is used in a Shell and Tube heat exchanger, which one of the following is not true?
A.	If the fluid is gas then the gas side heat transfer coefficient is the lowest
B.	Extended fins are used on the shell side to increase the Heat Transfer coefficient
C.	Baffles are provided only to work as fins
D.	Fins increase necessary heat transfer area
Answer» D. Fins increase necessary heat transfer area

Discussion

5.	When we want to heat a stream of liquid by Steam, we usually keep steam on the shell side and fluid in the tube.
A.	True
B.	False
Answer» B. False

Discussion

6.	What can we infer from the name 2-4 Shell and Tube Heat Exchanger?
A.	Partition of the Shell into two and four passes of the tube
B.	Partition of the Shell into two three passes of the tube
C.	One Shell and Four pass of the tube
D.	Partition of the Shell into three four passes of the tube
Answer» B. Partition of the Shell into two three passes of the tube

Discussion

7.	In an operation where we want to heat a stream of liquid by Steam, we have the option to use extended fins. Then which of the following is best suited?
A.	Steam on the shell side with the fins on outer surface of the tube
B.	Steam on the tube side with the fins on outer surface of the tube
C.	Steam on the shell side with the fins on inner surface of the tube
D.	Steam on the tube side with the fins on inner surface of the tube
Answer» B. Steam on the tube side with the fins on outer surface of the tube

Discussion

8.	How many times do we have to calculate for Pressure drop in a Shell and Tube Heat Exchanger?
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

9.	Consider we have a 1-2 Shell and Tube Heat Exchanger with tube diameter 20mm and shell diameter 55mm, we have two fluids A&B, A is supply water and B is distilled water, we desire to have their flow rates as 15m³/s and 21m³/s respectively. Which fluid pass arrangement would be best suited for the HE?
A.	Parallel flow with A in tube and B in the shell side
B.	Counterflow with B in tube and A in the shell side
C.	Counterflow with A in tube and B in the shell side
D.	Parallel flow with B in tube and A in the shell side
Answer» C. Counterflow with A in tube and B in the shell side

Discussion

10.	Shell and Tube Heat Exchangers are not commonly used in industries because of their inability to handle high pressure and temperature.
A.	True
B.	False
Answer» C.

Discussion

Explore topic-wise MCQs in Heat Transfer Operations.

Which one of the following figures correctly represents counter-flow operation of a shell and tube heat exchanger with the specific heat of fluid in the shell side more than the fluid in the tube side?

For the calculation of Overall Heat transfer coefficient UD, for given fouling factor Rf and Dirt Factor Rd, which one of the following expressions do we use?

Which of the following statements are incorrect about Baffles in a Shell and Tube HE?

When a fluid is used in a Shell and Tube heat exchanger, which one of the following is not true?

When we want to heat a stream of liquid by Steam, we usually keep steam on the shell side and fluid in the tube.

What can we infer from the name 2-4 Shell and Tube Heat Exchanger?

In an operation where we want to heat a stream of liquid by Steam, we have the option to use extended fins. Then which of the following is best suited?

How many times do we have to calculate for Pressure drop in a Shell and Tube Heat Exchanger?

Shell and Tube Heat Exchangers are not commonly used in industries because of their inability to handle high pressure and temperature.

For the calculation of Overall Heat transfer coefficient U_D, for given fouling factor R_f and Dirt Factor R_d, which one of the following expressions do we use?