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This section includes 28 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. |
What is the mass flow rate of the heating steam isInternal energy U= 400JArea= 2m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=1000J |
| A. | 16Kg |
| B. | 32Kg |
| C. | 260Kg |
| D. | 36Kg |
| Answer» B. 32Kg | |
| 2. |
What is the mass flow rate of the heating steam isInternal energy U= 1950JArea= 2m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=1000J |
| A. | 32Kg |
| B. | 36Kg |
| C. | 58Kg |
| D. | 30Kg |
| Answer» D. 30Kg | |
| 3. |
What is the mass flow rate of the heating steam isInternal energy U= 300JArea= 6m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=1000J |
| A. | 43Kg |
| B. | 36Kg |
| C. | 67Kg |
| D. | 87Kg |
| Answer» C. 67Kg | |
| 4. |
What is the mass flow rate of the heating steam isInternal energy U= 400JArea= 4m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=1000J |
| A. | 32Kg |
| B. | 36Kg |
| C. | 58Kg |
| D. | 65Kg |
| Answer» B. 36Kg | |
| 5. |
What is the mass flow rate of the heating steam isInternal energy U= 500JArea= 3m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=10000J |
| A. | 2Kg |
| B. | 3Kg |
| C. | 20Kg |
| D. | 30Kg |
| Answer» C. 20Kg | |
| 6. |
What is the mass flow rate of the heating steam isInternal energy U= 500JArea= 2m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=10000J |
| A. | 2Kg |
| B. | 3Kg |
| C. | 20Kg |
| D. | 30Kg |
| Answer» B. 3Kg | |
| 7. |
What is the mass flow rate of the heating steam isInternal energy U= 500JArea= 2m2Temperature driving force is Ts-Tp 30oCLatent heat of vaporization is Hvap=1000J |
| A. | 2Kg |
| B. | 3Kg |
| C. | 20Kg |
| D. | 30Kg |
| Answer» E. | |
| 8. |
What is the mass flow rate of the heating steam isInternal energy U= 500JArea= 2m2Temperature driving force is Ts-Tp 20oCLatent heat of vaporization is Hvap=1000J |
| A. | 2Kg |
| B. | 3Kg |
| C. | 20Kg |
| D. | 30Kg |
| Answer» D. 30Kg | |
| 9. |
Evaporation units may be operated without obtaining a permit if ________ |
| A. | Chemicals are used |
| B. | Resins are associated |
| C. | Unit is enclosed |
| D. | Waste is reused |
| Answer» D. Waste is reused | |
| 10. |
_________ wastes can be treated in evaporator. |
| A. | Aqueous inorganic |
| B. | Organic |
| C. | Aqueous organic |
| D. | Dry |
| Answer» B. Organic | |
| 11. |
Evaporator must have sufficient disc engaging space to achieve ________ |
| A. | Separation |
| B. | Chemicals |
| C. | Boiling |
| D. | Pressure |
| Answer» B. Chemicals | |
| 12. |
Steel tubes used in multiple effect evaporator are placed on surface. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Evaporation of liquids from hazardous waste through multiple evaporator, distillation etc. is dependent on ________ |
| A. | Melting point |
| B. | Freezing point |
| C. | Boiling point |
| D. | Vapour pressure |
| Answer» D. Vapour pressure | |
| 14. |
The residues produced from evaporation treatment is _________ |
| A. | Less |
| B. | More |
| C. | Undetermined |
| D. | No residue |
| Answer» B. More | |
| 15. |
__________ separation techniques are used before evaporation process. |
| A. | Physical |
| B. | Chemical |
| C. | Biological |
| D. | Biochemical |
| Answer» B. Chemical | |
| 16. |
Liquids with high vapour pressure evaporates slowly. |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
Rate of evaporation of liquid waste is measured by _______ |
| A. | Vapour pressure |
| B. | Pressure |
| C. | Temperature |
| D. | Heat |
| Answer» B. Pressure | |
| 18. |
_____WASTES_CAN_BE_TREATED_IN_EVAPORATOR.?$ |
| A. | Aqueous inorganic |
| B. | Organic |
| C. | Aqueous organic |
| D. | Dry |
| Answer» B. Organic | |
| 19. |
Evaporation_units_may_be_operated_without_obtaining_a_permit_if_____$ |
| A. | Chemicals are used |
| B. | Resins are associated |
| C. | Unit is enclosed |
| D. | Waste is reused |
| Answer» D. Waste is reused | |
| 20. |
Which of the following waste is not applicable for evaporation? |
| A. | Calcium |
| B. | Iron |
| C. | Copper |
| D. | Methylene chloride |
| Answer» E. | |
| 21. |
Evaporator must have sufficient disc engaging space to achieve ______ |
| A. | Separation |
| B. | Chemicals |
| C. | Boiling |
| D. | Pressure |
| Answer» B. Chemicals | |
| 22. |
Steel tubes used in multiple effect evaporator are placed on surface. True or False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 23. |
Evaporation of liquids from hazardous waste through multiple evaporator, distillation etc. is dependent on ____ |
| A. | Melting point |
| B. | Freezing point |
| C. | Boiling point |
| D. | Vapour pressure |
| Answer» D. Vapour pressure | |
| 24. |
The residues produced from evaporation treatment is ____ |
| A. | Less |
| B. | More |
| C. | Undetermined |
| D. | No residue |
| Answer» B. More | |
| 25. |
_____separation techniques are used before evaporation process. |
| A. | Physical |
| B. | Chemical |
| C. | Biological |
| D. | Biochemical |
| Answer» B. Chemical | |
| 26. |
Liquids with high vapour pressure evaporates slowly. True or False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 27. |
Which of the following is not an assumption in the evaporator model? |
| A. | The feed has only one volatile components |
| B. | Only the latent heat of vaporization is available for heating the solution |
| C. | Boiling action in heat exchanger ensures perfect mixing |
| D. | Overall temperature driving force is the temperature that of saturated steam |
| Answer» E. | |
| 28. |
Which of the following is a characteristic of a horizontal tube evaporator? |
| A. | Agitation is provided only by bubbles leaving the evaporator as vapor |
| B. | The tube bundle is arranged vertically, with the solution inside the tubes condensing outside |
| C. | To handle viscous solution a pump is used to force liquid upwards |
| D. | Also called short vertical tube evaporator |
| Answer» B. The tube bundle is arranged vertically, with the solution inside the tubes condensing outside | |