MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
For the calculation of Overall Heat transfer coefficient UD, for given fouling factor Rf and Dirt Factor Rd, which one of the following expressions do we use? |
| A. | (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub><sup>-1</sup>+ R<sub>f</sub>)<sup>-1</sup> |
| B. | (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub>)<sup>-1</sup> |
| C. | (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub><sup>-1</sup>) |
| D. | (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub> + R<sub>f</sub>) |
| Answer» C. (U<sub>C</sub><sup>-1</sup> + R<sub>d</sub>+ R<sub>f</sub><sup>-1</sup>) | |