MCQOPTIONS
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MCQOPTIONS
This section includes 3 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. |
Electromagnetic waves strikes a hot body maintained at 900 degree Celsius which has a reflectivity of 0.66 and a transmissivity of 0.022. Let the absorbed flux be 60 W/m2. Determine the rate of incident flux |
| A. | 168.67 W/m2 |
| B. | 178.67 W/m2 |
| C. | 188.67 W/m2 |
| D. | 198.67 W/m2 |
| Answer» D. 198.67 W/m2 | |
| 2. |
Energy strikes a vertical hemispherical plate with an intensity of 640 W/m2. The absorptivity is thrice the transmissivity and twice the reflectivity. Determine the rate of absorption |
| A. | 449.12 W/m2 |
| B. | 349.12 W/m2 |
| C. | 249.12 W/m2 |
| D. | 149.12 W/m2 |
| Answer» C. 249.12 W/m2 | |
| 3. |
Energy strikes a vertical hemispherical plate with an intensity of 640 W/m2. The absorptivity is thrice the transmissivity and twice the reflectivity. Determine the rate of transmission |
| A. | 236.74 W/m2 |
| B. | 116.37 W/m2 |
| C. | 187.87 W/m2 |
| D. | 456.09 W/m2 |
| Answer» C. 187.87 W/m2 | |