MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Distillation Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Scaling up from pilot scale to industrial scale only increases |
| A. | Feed rates |
| B. | Reflux ratio |
| C. | No. of stages |
| D. | Composition |
| Answer» B. Reflux ratio | |
| 2. |
At minimum reflux, No. stages are |
| A. | Unity |
| B. | Infinite |
| C. | Zero |
| D. | Negative |
| Answer» C. Zero | |
| 3. |
For value of m, the change in liquid concentration is independent of tray location if |
| A. | L/V = 1 |
| B. | V/L =1 |
| C. | L/mV=1 |
| D. | Vm/L=1 |
| Answer» D. Vm/L=1 | |
| 4. |
Minimum reflux ratio in a distillation column results in |
| A. | Optimum no. of trays |
| B. | Minimum reboiler size |
| C. | Maximum condenser size |
| D. | Minimum number of trays |
| Answer» D. Minimum number of trays | |
| 5. |
If distillate is 95%, and withdrawal is 4 and α=2.5. Estimate total number of tray? |
| A. | 7.7 |
| B. | 10 |
| C. | 6.7 |
| D. | 5.7 |
| Answer» D. 5.7 | |
| 6. |
If x=0.4 and y =0.6633 and point xD (0.9, 0.9). Then estimate Rmin |
| A. | 0.9 |
| B. | 0.4734 |
| C. | 0.4 |
| D. | 0.66 |
| Answer» B. 0.4734 | |
| 7. |
AT_MINIMUM_REFLUX,_NO._STAGES_ARE?$ |
| A. | Unity |
| B. | Infinite |
| C. | Zero |
| D. | Negative |
| Answer» C. Zero | |
| 8. |
Scaling_up_from_pilot_scale_to_industrial_scale_only_increases$ |
| A. | Feed rates |
| B. | Reflux ratio |
| C. | No. of stages |
| D. | Composition |
| Answer» B. Reflux ratio | |
| 9. |
For value of m, the change in liquid concentration is independent of tray location i? |
| A. | L/V = 1 |
| B. | V/L =1 |
| C. | L/mV=1 |
| D. | Vm/L=1 |
| Answer» D. Vm/L=1 | |
| 10. |
In a tray column, Murphree efficiency |
| A. | Exceed 100% |
| B. | Equal to 100% |
| C. | Can’t be specified |
| D. | Depend upon cases given |
| Answer» B. Equal to 100% | |
| 11. |
For non-ideal cases, to calculate number of stages we use |
| A. | Point efficiency |
| B. | Murphree efficiency |
| C. | Tray efficiency |
| D. | Overall efficiency |
| Answer» C. Tray efficiency | |
| 12. |
If distillate is 95%, and withdrawal is 4 and α=2.5. Estimate total number of tray?$ |
| A. | 7.7 |
| B. | 10 |
| C. | 6.7 |
| D. | 5.7 |
| Answer» D. 5.7 | |
| 13. |
If x=0.4 and y =0.6633 and point xD (0.9, 0.9). Then estimate Rmin |
| A. | 0.9 |
| B. | 0.4734 |
| C. | 0.4 |
| D. | 0.66 |
| Answer» B. 0.4734 | |
| 14. |
When R is infinite, the slope of this rectifying becomes |
| A. | 0 |
| B. | 1 |
| C. | 0.5 |
| D. | Can’t be specified |
| Answer» C. 0.5 | |
| 15. |
The number of theoretical stages, depends on the |
| A. | Stepping off the tray |
| B. | Reflux ratio |
| C. | Operating line |
| D. | Flow rates |
| Answer» C. Operating line | |