MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If at a certain pressure the vapor pressure of water is 10pisa and the mole fraction of water is 0.8, find out the crystallizer pressure. |
| A. | 5pisa |
| B. | 6pisa |
| C. | 7pisa |
| D. | 8pisa |
| Answer» E. | |
| 2. |
If at a certain pressure the vapor pressure of water is 2pisa and the mole fraction of water is 0.9, find out the crystallizer pressure. |
| A. | 0.45pisa |
| B. | 1.8pisa |
| C. | 3.6pisa |
| D. | 0.81pisa |
| Answer» C. 3.6pisa | |
| 3. |
If at a certain pressure the vapor pressure of water is 6pisa and the mole fraction of water is 0.7, find out the crystallizer pressure. |
| A. | 3.3pisa |
| B. | 3.5pisa |
| C. | 3.96pisa |
| D. | 4.2pisa |
| Answer» E. | |
| 4. |
IF_AT_A_CERTAIN_PRESSURE_THE_VAPOR_PRESSURE_OF_WATER_IS_2PISA_AND_THE_MOLE_FRACTION_OF_WATER_IS_0.9,_FIND_OUT_THE_CRYSTALLIZER_PRESSURE.?$ |
| A. | 0.45pisa |
| B. | 1.8pisa |
| C. | 3.6pisa |
| D. | 0.81pisa |
| Answer» C. 3.6pisa | |
| 5. |
If_at_a_certain_pressure_the_vapor_pressure_of_water_is_10pisa_and_the_mole_fraction_of_water_is_0.8,_find_out_the_crystallizer_pressure.$ |
| A. | 5pisa |
| B. | 6pisa |
| C. | 7pisa |
| D. | 8pisa |
| Answer» E. | |
| 6. |
If at a certain pressure the vapor pressure of water is 8pisa and the mole fraction of water is 0.9, find out the crystallizer pressure. |
| A. | 0.64pisa |
| B. | 7.2pisa |
| C. | 0.66pisa |
| D. | 0.81pisa |
| Answer» C. 0.66pisa | |
| 7. |
If at a certain pressure the vapor pressure of water is 4.74pisa and the mole fraction of water is 0.923, find out the crystallizer pressure. |
| A. | 2.5pisa |
| B. | 4.38pisa |
| C. | 4.56pisa |
| D. | 4.76pisa |
| Answer» C. 4.56pisa | |
| 8. |
The calculations of multiphase system are made by: |
| A. | Graph |
| B. | Hand calculations |
| C. | Trial and error |
| D. | Process simulators |
| Answer» E. | |
| 9. |
What is the enthalpy balance for three phase system? |
| A. | h<sub>F</sub>F + Q =h<sub>v</sub>V + h<sub>L</sub>L<sup>(1)</sup> + hLL<sup>(2)</sup> |
| B. | h<sub>F</sub>F =h<sub>v</sub>V + h<sub>L</sub>L<sup>(1)</sup> + h<sub>L</sub>LL<sup>(2)</sup> |
| C. | h<sub>F</sub>F – Q =h<sub>v</sub>V + h<sub>L</sub><sup>(1)</sup> + h<sub>L</sub>LL<sup>(2)</sup> |
| D. | h<sub>F</sub>F + Q =h<sub>v</sub>V + h<sub>L</sub>L + h<sub>L</sub>LL |
| Answer» B. h<sub>F</sub>F =h<sub>v</sub>V + h<sub>L</sub>L<sup>(1)</sup> + h<sub>L</sub>LL<sup>(2)</sup> | |
| 10. |
Why are calculations for three phase flash difficult? |
| A. | Because of strong dependency of K values on liquid phase composition when two immiscible liquids are present |
| B. | Because of strong dependency of K values on vapor phase composition when two immiscible liquids are present |
| C. | Because of strong dependency of K values on liquid phase composition when two miscible liquids are present |
| D. | Because of strong dependency of K values on liquid phase composition when three immiscible liquids are present |
| Answer» B. Because of strong dependency of K values on vapor phase composition when two immiscible liquids are present | |
| 11. |
How to separate vapor-liquid-liquid system? |
| A. | Fractional distillation |
| B. | Fractional crystallization |
| C. | Zone melting |
| D. | Three phase isothermal flash |
| Answer» E. | |
| 12. |
What is the third phase in all the two phase systems? |
| A. | The adsorbent |
| B. | The interface |
| C. | The container |
| D. | The atmosphere |
| Answer» D. The atmosphere | |