MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Tube fin heat exchangers can withstand high pressure drop ________ |
| A. | On the tube side |
| B. | On the shell side |
| C. | On the side which has fins attached |
| D. | On the opposite side of the fins |
| Answer» B. On the shell side | |
| 2. |
In Conventional Tube Fin HE, the fins are used on the _________ side. |
| A. | Shell side |
| B. | Tube side |
| C. | Gas Side |
| D. | Liquid side |
| Answer» D. Liquid side | |
| 3. |
Tube Fin HE can be classified to two categories which are Conventional and Specialised Tube Fins HE. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Recognize the equipment for the following fin. |
| A. | Shell and Tube |
| B. | Tube Fin |
| C. | Double Pipe |
| D. | Plate Fin |
| Answer» E. | |
| 5. |
Which type of fin is not used in Plate-Fin Heat exchangers? |
| A. | Louver |
| B. | Triangular or corrugated |
| C. | Wavy |
| D. | Longitudinal |
| Answer» E. | |
| 6. |
Adding fins inside the tube, that is for the tube side usually ________ the heat transfer coefficient. |
| A. | Decreases |
| B. | Increases |
| C. | Tenfold |
| D. | Does not change |
| Answer» B. Increases | |
| 7. |
What is the flow area in the following diagram?Inner Tube Diameter = 20mmOuter Tube Diameter = 40mmFin width = 5mm |
| A. | 743.5 sq mm |
| B. | 740.5 sq mm |
| C. | 742.5 sq mm |
| D. | 741.5 sq mm |
| Answer» D. 741.5 sq mm | |
| 8. |
By increasing the fin density, the heat transfer coefficient associated with fins__________ |
| A. | Decreases |
| B. | Increases |
| C. | Remains the same |
| D. | Increases tenfold |
| Answer» B. Increases | |
| 9. |
What is the correct values of X and Y in the following diagram? H = Total heat transferred |
| A. | X = H, Y = 0 |
| B. | X = 0, Y = H |
| C. | X = H/2, Y = H/2 |
| D. | X = H/L, Y = H – H/L |
| Answer» C. X = H/2, Y = H/2 | |
| 10. |
Which one of the following is correct about the temperature of the fluid in contact with the fins? |
| A. | Is at a constant temperature |
| B. | Temperature increases along the fin length |
| C. | Temperature decreases along the fin length |
| D. | Depends on flow pattern |
| Answer» B. Temperature increases along the fin length | |
| 11. |
The Heat Transfer Coefficient remains constant throughout the surface of the fin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The thermal conductivity of the fin should _________ with time. |
| A. | Exponentially increasing |
| B. | Increasing |
| C. | Decreasing |
| D. | Constant |
| Answer» E. | |
| 13. |
The fin material should be homogeneous and _________ for steady state operation. |
| A. | Isotropic |
| B. | Isentropic |
| C. | Isochoric |
| D. | Isobaric |
| Answer» B. Isentropic | |
| 14. |
For using fins, the heat flow is assumed to be in _______ |
| A. | Exponentially increasing |
| B. | Unsteady State |
| C. | Linearly decreasing |
| D. | Steady State |
| Answer» E. | |
| 15. |
In assumption for using fins, the heat flow and temperature distribution throughout the fins is _______ time. |
| A. | Directly Proportional to |
| B. | Independent of |
| C. | Inversely Proportional to |
| D. | Square proportional to |
| Answer» C. Inversely Proportional to | |