MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Operations Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the expression for the rate of heat transfer for a cylindrical insulating wall covering a hot fluid? |
| A. | Q = \(\frac{2\pi(T-T_\infty)K}{\frac{K}{HR_2}+ln (\frac{R_2}{R_1})}\) |
| B. | Q = \(\frac{2\pi(T_\infty-T)K}{\frac{K}{HR_1}+ln (\frac{R_2}{R_1})}\) |
| C. | Q = \(\frac{2\pi(T-T_\infty)K}{\frac{K}{HR_2}+ln (\frac{R_1}{R_2})}\) |
| D. | Q = \(\frac{2\pi(T_\infty-T)K}{\frac{K}{HR_2}+ln (\frac{R_2}{R_1})}\) |
| Answer» B. Q = \(\frac{2\pi(T_\infty-T)K}{\frac{K}{HR_1}+ln (\frac{R_2}{R_1})}\) | |
| 2. |
What is the resistance of the following wall setup? |
| A. | R = \(\frac{1}{h_1A}+\frac{L}{K_1}+\frac{1}{K_2}\) |
| B. | R = \(\frac{1}{h_1A}+\frac{L}{K_1}+\frac{L}{K_2}\) |
| C. | R = \(\frac{L}{h_1A}+\frac{L}{K_1}+\frac{L}{K_2}\) |
| D. | R = \(\frac{1}{h_1A}+\frac{L}{K_1}+\frac{1}{h_1A}\) |
| Answer» C. R = \(\frac{L}{h_1A}+\frac{L}{K_1}+\frac{L}{K_2}\) | |
| 3. |
Which one of the following relations are correct? |
| A. | K1 < K2 |
| B. | K1 = K2 |
| C. | K1 > K2 |
| D. | K1 and K2 relation not defined |
| Answer» B. K1 = K2 | |