MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 13 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. |
If reflux increases, then the cost of operation |
| A. | First increases then decreases |
| B. | Goes on increasing |
| C. | Approaches infinity |
| D. | First decreases then increases |
| Answer» B. Goes on increasing | |
| 2. |
If stages are fixed, then Reflux ratio |
| A. | Decreases |
| B. | Increases |
| C. | Equates to 0 |
| D. | Approaches infinity. |
| Answer» C. Equates to 0 | |
| 3. |
Optimum reflux ratio ranges between |
| A. | 2 to 5 |
| B. | 2 to 3 |
| C. | 1.0 to 1 .5 |
| D. | 1.0 to 2.5 |
| Answer» D. 1.0 to 2.5 | |
| 4. |
IF_STAGES_ARE_FIXED,_THEN_REFLUX_RATIO?$ |
| A. | Decreases |
| B. | Increases |
| C. | Equates to 0 |
| D. | Approaches infinity. |
| Answer» C. Equates to 0 | |
| 5. |
If_reflux_increases,_then_the_cost_of_operation$ |
| A. | First increases then decreases |
| B. | Goes on increasing |
| C. | Approaches infinity |
| D. | First decreases then increases |
| Answer» B. Goes on increasing | |
| 6. |
Optimum reflux ratio ranges betwee? |
| A. | 2 to 5 |
| B. | 2 to 3 |
| C. | 1.0 to 1 .5 |
| D. | 1.0 to 2.5 |
| Answer» D. 1.0 to 2.5 | |
| 7. |
The boil up ratio can be defined as ratio of |
| A. | V/L |
| B. | D/V |
| C. | V/W |
| D. | L/W |
| Answer» D. L/W | |
| 8. |
The external reflux ratio can be defined as |
| A. | L<sub>0</sub>/D |
| B. | D/L |
| C. | D<sub>0</sub>/L |
| D. | V/L |
| Answer» E. | |
| 9. |
Minimum number of trays can be calculated using |
| A. | Bernoulli’s Eon |
| B. | Henry’s Law |
| C. | Fenske’s Equation |
| D. | Homotomy Equation |
| Answer» D. Homotomy Equation | |
| 10. |
When rectifying and stripping both are combined in single stage process this is |
| A. | Differentiation |
| B. | Fractionation |
| C. | Recycle |
| D. | Purging |
| Answer» C. Recycle | |
| 11. |
When Cooling is applied to condense a part of overhead product it is called |
| A. | Reflux |
| B. | Dew point |
| C. | Boil Up |
| D. | Relative BP |
| Answer» B. Dew point | |
| 12. |
When heat is supplied to bottom of liquid stage to vaporize a portion it is called |
| A. | Condensing |
| B. | Boil up |
| C. | Cooling |
| D. | Desalting |
| Answer» C. Cooling | |
| 13. |
An ideal distillation stage is the one that |
| A. | Operates at steady state |
| B. | Operates at High temperature |
| C. | Operates at Low pressure |
| D. | Operates at high pressure |
| Answer» B. Operates at High temperature | |