MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is crystallizer used for? |
| A. | Liquid-solid separation |
| B. | Solid separation |
| C. | Liquid – liquid separation |
| D. | Gas – solid separation |
| Answer» B. Solid separation | |
| 2. |
Is organic substance produce by cooling crystallizers? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is not true about scraped surface crystallizers? |
| A. | Low energy |
| B. | Low cost |
| C. | Ideal for small scale operation |
| D. | Less consumption of time |
| Answer» E. | |
| 4. |
What is surface-cooled crystallizer? |
| A. | Combination of draft tube baffle crystallizer body with a heat exchanger |
| B. | Combination of forced circulation crystallizer body with a heat exchanger |
| C. | Combination of vacuum body with a heat exchanger |
| D. | Combination of crystallizer body with a heat exchanger |
| Answer» B. Combination of forced circulation crystallizer body with a heat exchanger | |
| 5. |
Are these statements about the draft tube baffle crystallizers true?Statement 1: Frequent flushing required minimizing deposits on the crystallizer wall.Statement 2: Cannot effectively handle a high density slurry |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 6. |
What is residence time for draft tube baffle crystallizers? |
| A. | 1 to 3 hours |
| B. | 4 to 6 hours |
| C. | 7 to 9 hours |
| D. | 10 to 11 hours |
| Answer» C. 7 to 9 hours | |
| 7. |
What is the name of the unwanted crystals in draft tube baffle crystallizers? |
| A. | Fines |
| B. | Powder |
| C. | Soap |
| D. | Low quality crystals |
| Answer» B. Powder | |
| 8. |
Are these statements about the Forced circulation crystallizers true?Statement 1: Difficult to control crystal size.Statement 2: Least expensive type of crystallizer. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 9. |
What is the principle behind forced-circulation crystallizers? |
| A. | Evaporative crystallization |
| B. | Cooling crystallization |
| C. | Perceptive cooling crystallization |
| D. | Freezing crystallization |
| Answer» B. Cooling crystallization | |
| 10. |
What are the advantages of vacuum crystallizers? |
| A. | Low yield of crystals |
| B. | Small crystals |
| C. | Increase in color formation |
| D. | Reduced color formation |
| Answer» E. | |