MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 3 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. |
What is the wavelength band for solar radiation? |
| A. | 1 * 10 <sup>-1</sup> to 3 micron meter |
| B. | 1 * 10 <sup>-1</sup> to 2 micron meter |
| C. | 1 * 10 <sup>-1</sup> to 1 micron meter |
| D. | 1 * 10 <sup>-1</sup> to 10 micron meter |
| Answer» B. 1 * 10 <sup>-1</sup> to 2 micron meter | |
| 2. |
A black body of total area 0.045 m2 is completely enclosed in a space bounded by 5 cm thick walls. The walls have a surface area 0.5 m 2 and thermal conductivity 1.07 W/ m K. If the inner surface of the enveloping wall is to be maintained at 215 degree Celsius and the outer wall surface at 30 degree Celsius, calculate the temperature of the black body |
| A. | 547.3 K |
| B. | 287.4 K |
| C. | 955.9 K |
| D. | 222.2 K |
| Answer» D. 222.2 K | |
| 3. |
What is the wavelength band for Ultraviolet rays? |
| A. | 1 * 10 <sup>-6</sup> to 3.9 * 10 <sup>-1</sup> micron meter |
| B. | 1 * 10 <sup>-4</sup> to 3.9 * 10 <sup>-1</sup> micron meter |
| C. | 2 * 10 <sup>-3</sup> to 3.9 * 10 <sup>-1</sup> micron meter |
| D. | 1 * 10 <sup>-2</sup> to 3.9 * 10 <sup>-1</sup> micron meter |
| Answer» E. | |