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. |
“Thermal conductivity represents the amount of heat conducted across the unit area when a temperature difference of one kelvin”. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The diagram shows heat conduction through a plane wall. The surface temperature is 475 K and it radiates heat to the surroundings at 335 K. If thermal conductivity of the material is 12.5 W/m degree, find the temperature gradient. Let convective coefficient be 80 W/m2 degree and radiation factor is 0.9 |
| A. | – 1052.4 degree celsius |
| B. | – 2052.4 degree celsius |
| C. | – 3052.4 degree celsius |
| D. | – 4052.4 degree celsius |
| Answer» B. – 2052.4 degree celsius | |