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Mass Transfer-Data Intensity 4 Multiple Questions and Answers.
| 1. | In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the ___ number ? | ||
| A. | Lewis | ||
| B. | Grashoff | ||
| C. | Sherwood | ||
| D. | None of these | ||
| 2. | In an absorption column, the flooding velocity for random packing is ____ that for stacked/regular packing? | ||
| A. | Greater than | ||
| B. | Smaller than | ||
| C. | Equal to | ||
| D. | None of above | ||
| 3. | In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed___? | ||
| A. | q > 1 | ||
| B. | q < 1 | ||
| C. | q = 1 | ||
| D. | q = 0 | ||
| 4. | With increase in temperature, the leaching rate increases due to___? | ||
| A. | Decreased liquid viscosity | ||
| B. | Increased diffusivity | ||
| C. | Both A. and B. | ||
| D. | None of above | ||
| 5. | Large scale drying of wheat is done in a _____ dryer? | ||
| A. | Fluidised bed | ||
| B. | Spouted bed | ||
| C. | Tray | ||
| D. | Vacuum rotary | ||
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