MCQOPTIONS
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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. |
If an annulus has an inner diameter of d 1 and an outer diameter of d 2 then the equivalent diameter is |
| A. | 2 d<sub> 2 </sub> d<sub> 1</sub> |
| B. | d<sub> 2 </sub> 2 d<sub> 1</sub> |
| C. | d<sub> 1 </sub> d<sub> 2 </sub> |
| D. | d<sub> 2 </sub> d<sub> 1</sub> |
| Answer» E. | |
| 2. |
For a duct of rectangular cross-section with length l and breadth b, the value of d e is |
| A. | l b / l + b |
| B. | 2 l b |
| C. | 2 l b / l + b |
| D. | 4 l b / l + b |
| Answer» D. 4 l b / l + b | |
| 3. |
The characteristic dimension d in the relation R E = V d p/ is the equivalent diameter and is defined as how many times the cross-sectional flow area divided by the wetted perimeter |
| A. | 7 |
| B. | 4 |
| C. | 1 |
| D. | 6 |
| Answer» C. 1 | |