MCQOPTIONS
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MCQOPTIONS
This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A large steel plate 50 mm thick is initially at a uniform temperature of 425 degree Celsius. It is suddenly exposed on both sides to an environment with convective coefficient 285 W/m2 K and temperature 65 degree Celsius. Determine the center line temperature. |
| A. | For steel, thermal conductivity = 42.5 W/m K and thermal diffusivity = 0.043 m2/hr |
| B. | 261 degree Celsius |
| C. | 271 degree Celsius |
| D. | 281 degree Celsius |
| E. | 291 degree Celsius |
| Answer» D. 281 degree Celsius | |
| 2. |
Diagram shows transient heat conduction in an infinite plane wall. Identify the correct boundary condition in transient heat conduction in solids with finite conduction |
| A. | t = t i at T = 0 |
| B. | d t /d x = 1 at x = 0 |
| C. | d t /d x = infinity at x = 1 |
| D. | d t / d x = infinity at x = 0 |
| Answer» B. d t /d x = 1 at x = 0 | |