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 solvent is used in phytonics extraction process? |
| A. | Hydrofluorocarbon -134a |
| B. | ammnia |
| C. | CFCs |
| D. | Alcohol |
| Answer» B. ammnia | |
| 2. |
What advantages does the Soxhlet extraction have over other extraction processes? |
| A. | Complete extraction and high efficiency |
| B. | Complete extraction and small solvent dosage |
| C. | Small solvent dosage and complete extraction |
| D. | Small solvent dosage, high efficiency and complete extraction |
| Answer» E. | |
| 3. |
What is percolation extraction? |
| A. | A method of extraction by gravity |
| B. | A method of extraction by filtration |
| C. | A method of extraction by sedimentation |
| D. | A method of extraction by distillation |
| Answer» C. A method of extraction by sedimentation | |
| 4. |
What are the methods of extraction used? |
| A. | Pressing |
| B. | Distillation |
| C. | Solvent extraction |
| D. | Solvent extraction, distillation method, pressing |
| Answer» E. | |
| 5. |
What is the purpose of extraction? |
| A. | Separate an organic substance from a mixture |
| B. | Separate an inorganic substance from a mixture |
| C. | Separate both organic and inorganic substance from a mixture |
| D. | Separate dust from a mixture |
| Answer» B. Separate an inorganic substance from a mixture | |
| 6. |
Which of the following statements about centrifugal extractors are correct?Statement 1: Discrete stages can be recognized.Statement 2: The applied centrifugal force causes the two phases to move radially in countercurrent mode. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» B. True, True | |
| 7. |
What are methods for regeneration of solvents? |
| A. | Rectification |
| B. | Evaporation |
| C. | Crystallization |
| D. | Rectification, evaporation, crystallization |
| Answer» E. | |
| 8. |
What are the main factors considered for the operation of extraction column? |
| A. | Droplet size, axial dispersion |
| B. | Droplet size distribution, axial dispersion |
| C. | Droplet size, droplet size distribution |
| D. | Droplet size, droplet size distribution and axial dispersion |
| Answer» E. | |
| 9. |
What is basic principle behind packed towers? |
| A. | By gravity |
| B. | By centrifugal forces |
| C. | By centrifugal forces and size of the particle |
| D. | By centrifugal forces and gravity |
| Answer» B. By centrifugal forces | |
| 10. |
What are the classifications of extraction equipment? |
| A. | By gravity |
| B. | By centrifugal forces |
| C. | By centrifugal forces and size of the particle |
| D. | By centrifugal forces and gravity |
| Answer» E. | |