MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Calculate the sigma factor for the following operating conditionsBowl length L=0.1mRotation rate n=4000/sR0=0.02m, R1=0.01m |
| A. | 323 |
| B. | 212 |
| C. | 234 |
| D. | 222 |
| Answer» E. | |
| 2. |
Calculate the sigma factor for the following operating conditionsBowl length L=0.05mRotation rate n=2000/sR0=0.02m, R1=0.01m |
| A. | 27 |
| B. | 55 |
| C. | 111 |
| D. | 165 |
| Answer» B. 55 | |
| 3. |
Calculate the sigma factor for the following operating conditionsBowl length L=0.3mRotation rate n=2000/sR0=0.02m, R1=0.01m |
| A. | 50 |
| B. | 55 |
| C. | 111 |
| D. | 165 |
| Answer» E. | |
| 4. |
Calculate the sigma factor for the following operating conditionsBowl length L=0.2mRotation rate n=2000/sR0=0.02m, R1=0.01m |
| A. | 50 |
| B. | 55 |
| C. | 111 |
| D. | 165 |
| Answer» D. 165 | |
| 5. |
Calculate the sigma factor for the following operating conditionsBowl length L=0.1mRotation rate n=2000/sR0=0.02m, R1=0.01m |
| A. | 50 |
| B. | 55 |
| C. | 111 |
| D. | 165 |
| Answer» C. 111 | |
| 6. |
Why are gravity separators not used in bioseparations? |
| A. | Because density differences are very large |
| B. | Because density differences are very small |
| C. | Because gravity separators are too small |
| D. | Because the cultures get damaged |
| Answer» C. Because gravity separators are too small | |
| 7. |
When is the basket-filtering centrifuge not used? |
| A. | Solids are main product |
| B. | Low cake moisture content |
| C. | High solid recovery desired |
| D. | High liquid recovery desired |
| Answer» E. | |
| 8. |
In which industry tubular-bowl centrifuge not used? |
| A. | Food industry |
| B. | Pharma industry |
| C. | Biochemical industry |
| D. | Metallurgical industry |
| Answer» E. | |
| 9. |
What is the use of tubular-bowl centrifuge? |
| A. | To separate soap from oil |
| B. | To separate waste material |
| C. | To separate cells and viruses from broth |
| D. | To separate salts from mixtures |
| Answer» D. To separate salts from mixtures | |
| 10. |
What are the two general types of centrifuge devices for solid-liquid separations? |
| A. | Sedimentation centrifuges, filtering centrifuges |
| B. | Sedimentation centrifuges, decantation centrifuges |
| C. | Filtering centrifuges, sintering centrifuges |
| D. | Sedimentation centrifuges, two way centrifuges |
| Answer» B. Sedimentation centrifuges, decantation centrifuges | |