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. |
Which of the following statements about filtration medium resistance are correct?Statement 1: Filtration resistance results in frictional drag.Statement 2: Filtrate velocity is directly proportional to pressure difference. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 2. |
How does filter medium resist? |
| A. | Due to pressure difference |
| B. | Due to temperature difference |
| C. | Due to concentration difference |
| D. | Due to concentration and temperature difference |
| Answer» B. Due to temperature difference | |
| 3. |
What controls the filtration medium resistance? |
| A. | Pressure drop alone |
| B. | Flow rate alone |
| C. | Both pressure drop and flow rate |
| D. | Cake thickness |
| Answer» D. Cake thickness | |
| 4. |
Which principle is behind filtration medium resistance? |
| A. | Darcy’s law |
| B. | Henry’s law |
| C. | Dalton’s law |
| D. | Newton’s law |
| Answer» B. Henry’s law | |
| 5. |
What is filtration medium resistance? |
| A. | Resistance by cake |
| B. | Resistance by filter medium |
| C. | Resistance by solution |
| D. | Resistance by cake and filter medium |
| Answer» E. | |
| 6. |
Which of the following statements about ultra-filtration are correct?Statement 1: Hydrostatic pressure forces a liquid against a semi permeable membrane.Statement 2: High molecular weight is retained. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 7. |
What is the pore size in membrane filter? |
| A. | 0.12–0.25 μm |
| B. | 0.22–0.45 μm |
| C. | 0.32–0.55 μm |
| D. | 0.52–0.65 μm |
| Answer» C. 0.32–0.55 μm | |
| 8. |
What is the pore size in ultra-filtration? |
| A. | Around 0.1 micron |
| B. | Around 0.01 micron |
| C. | Around 0.001 micron |
| D. | Around 0.0001 micron |
| Answer» C. Around 0.001 micron | |
| 9. |
What is the pore size in micro filtration? |
| A. | Around 0.1 micron |
| B. | Around 0.01 micron |
| C. | Around 0.001 micron |
| D. | Around 0.0001 micron |
| Answer» B. Around 0.01 micron | |
| 10. |
What is the pore size in nano filtration? |
| A. | 1-10 nanometers |
| B. | 10-50 nanometers |
| C. | 50-100 nanometers |
| D. | 100-150 nanometers |
| Answer» B. 10-50 nanometers | |