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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 | |