MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Recognize the given Shell and Tube Heat Exchanger. |
| A. | 1-2 Shell and Tube |
| B. | 2-3 Shell and Tube |
| C. | 2-4 Shell and Tube |
| D. | 3-6 Shell and Tube |
| Answer» E. | |
| 2. |
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? |
| A. | (UC-1 + Rd-1+ Rf)-1 |
| B. | (UC-1 + Rd+ Rf)-1 |
| C. | (UC-1 + Rd+ Rf-1) |
| D. | (UC-1 + Rd + Rf) |
| Answer» C. (UC-1 + Rd+ Rf-1) | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 7. |
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 | |
| 8. |
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 | |
| 9. |
Which type of Shell and tube heat exchanger does the below temperature plot correctly represent? |
| A. | Single Pass Shell and Tube |
| B. | 1-2 Shell and Tube |
| C. | 2-4 Shell and Tube |
| D. | 3-6 Shell and Tube |
| Answer» D. 3-6 Shell and Tube | |
| 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. | |