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. |
What is the value of characteristics length for cube? |
| A. | L/3 |
| B. | L/4 |
| C. | L/5 |
| D. | L/6 |
| Answer» E. | |
| 2. |
What is the value of characteristics length for sphere? |
| A. | R/2 |
| B. | R/3 |
| C. | R/4 |
| D. | R/5 |
| Answer» C. R/4 | |
| 3. |
During heat treatment, cylindrical pieces of 25 mm diameter, 30 mm height and at 30 degree Celsius are placed in a furnace at 750 degree Celsius with convective coefficient 80 W/m2 degree. Find the value of biot number if thermal conductivity is 40 W/m degree |
| A. | 0.0082 |
| B. | 0.0072 |
| C. | 0.0062 |
| D. | 0.0052 |
| Answer» B. 0.0072 | |