MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 the passes through the device is n=1The time constant T=1345sExpected release percent= 83%Maximum concentration C= 10Calculate the time required |
| A. | 2344s |
| B. | 4345s |
| C. | 2345s |
| D. | 4028s |
| Answer» D. 4028s | |
| 2. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 87.5%Maximum concentration C= 10Calculate the time required |
| A. | 2344s |
| B. | 4566s |
| C. | 2800s |
| D. | 4454s |
| Answer» D. 4454s | |
| 3. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 92%Maximum concentration C= 10Calculate the time required |
| A. | 3100s |
| B. | 3200s |
| C. | 3300s |
| D. | 3400s |
| Answer» E. | |
| 4. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 77%Maximum concentration C= 10Calculate the time required |
| A. | 2000s |
| B. | 2500s |
| C. | 3000s |
| D. | 3400s |
| Answer» B. 2500s | |
| 5. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 0.89%Maximum concentration C= 10Calculate the time required |
| A. | 2000s |
| B. | 2500s |
| C. | 3000s |
| D. | 3400s |
| Answer» D. 3400s | |
| 6. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 0.85%Maximum concentration C= 10Calculate the time required |
| A. | 2344s |
| B. | 4345s |
| C. | 2500s |
| D. | 4028s |
| Answer» D. 4028s | |
| 7. |
If the passes through the device is n=1The time constant T=1345sExpected release percent= 95%Maximum concentration C= 10Calculate the time required |
| A. | 2344s |
| B. | 4345s |
| C. | 2345s |
| D. | 4028s |
| Answer» E. | |
| 8. |
Which particles have the largest diameter? |
| A. | Colloidal |
| B. | Flocculated |
| C. | Coagulated |
| D. | Dispersed |
| Answer» C. Coagulated | |
| 9. |
How is flocculation defined as? |
| A. | Further agglomeration of small, slowly settling floc formed during coagulation to form a larger floc |
| B. | Cause (a fluid) to change to a solid or semi-solid state |
| C. | Gradually pour (wine, port, or another liquid) from one container into another, typically in order to separate out sediment |
| D. | Deagglomeration to break into smaller particles |
| Answer» B. Cause (a fluid) to change to a solid or semi-solid state | |
| 10. |
How is the physical process of sedimentation not enhanced? |
| A. | Coagulation |
| B. | Flocculation |
| C. | Agglomeration |
| D. | Decantation |
| Answer» E. | |
| 11. |
When are organic solvents not commonly used for precipitation? |
| A. | DNA precipitation |
| B. | RNA precipitation |
| C. | Plasma-protein precipitation |
| D. | Protein separation |
| Answer» E. | |
| 12. |
How does the salting out mechanism not occur? |
| A. | Salt removes water by associating with water molecules |
| B. | Few amount of water is left for proteins |
| C. | Shielding the electrostatic protein-protein changes that account for protein-protein repulsion |
| D. | Creating a barrier between the proteins and water |
| Answer» E. | |
| 13. |
Why is the pH change to induce precipitation not useful for commercialization? |
| A. | Proteins do not precipitate easily |
| B. | The minimum pH is unknown |
| C. | There are large differences in the isoelectric points |
| D. | Carrying a pH meter is not helpful |
| Answer» D. Carrying a pH meter is not helpful | |
| 14. |
What is a special case of precipitation? |
| A. | Distillation |
| B. | Fractional distillation |
| C. | Sedimentation |
| D. | Crystallization |
| Answer» E. | |
| 15. |
Which of the following changes does not induce precipitation? |
| A. | pH |
| B. | Temperature |
| C. | Addition of salts |
| D. | Gravity |
| Answer» E. | |