MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
For the same amount of fabrication material and same inside capacity, the heat loss is lowest in |
| A. | Sphere |
| B. | Cylinder |
| C. | Rectangle |
| D. | Cube |
| Answer» C. Rectangle | |
| 2. |
For the same material and same temperature difference, the heat flow in terms of shape factor is given by |
| A. | S k d t |
| B. | k d t/S |
| C. | 2S k/d t |
| D. | 2S/3 |
| Answer» B. k d t/S | |
| 3. |
The shape factor for complete rectangular furnace isWhere a, b and c are the inside dimensions and d x is the wall thickness |
| A. | 2/ d x (a b + b c + c a) + 4 (0.64) (a + b +c) + 8 (0.45) d x |
| B. | 2/ d x (a b + b c + c a) + 4 (0.44) (a + b +c) + 8 (0.35) d x |
| C. | 2/ d x (a b + b c + c a) + 4 (0.34) (a + b +c) + 8 (0.25) d x |
| D. | 2/ d x (a b + b c + c a) + 4 (0.54) (a + b +c) + 8 (0.15) d x |
| Answer» E. | |
| 4. |
All the factors relating to the geometry of the sections are grouped together into a multiple constant called the shape factor . |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
What is the shape factor for a hemispherical bowl with respect to itself of diameter d? The cavity is closed on its outer surface with a flat plate |
| A. | 1.5 |
| B. | 1 |
| C. | 0.5 |
| D. | 2.5 |
| Answer» D. 2.5 | |