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 centrifugation are correct?Statement 1: Particles are separated from a solution according to their size.Statement 2: Particles are not separated from a solution according to their shape. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» B. True, True | |
| 2. |
Is centrifugation used in wine processing? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What are applications of centrifugation? |
| A. | To separate two miscible substances and analyze the hydrodynamic properties of macromolecules |
| B. | To separate two miscible substances and water treatment |
| C. | Purification of mammalian cells and water treatment |
| D. | Analyze the hydrodynamic properties of macromolecules and water treatment |
| Answer» B. To separate two miscible substances and water treatment | |
| 4. |
Which centrifugation depends on buoyant densities? |
| A. | Isopynic centrifugation |
| B. | Gradient centrifugation |
| C. | Density gradient centrifugation |
| D. | Differential centrifugation |
| Answer» B. Gradient centrifugation | |
| 5. |
What is other name for zonal centrifugation? |
| A. | Isopyniccentrifugation |
| B. | Gradient centrifugation |
| C. | Density gradient centrifugation |
| D. | Differential centrifugation |
| Answer» C. Density gradient centrifugation | |
| 6. |
Which of the following statements about differential pelleting centrifugation are correct?Statement 1: Tissue such as the liver is homogenized by this method.Statement 2: The overlying solution is placed in another centrifuge tube for progressing steps. |
| A. | True, False |
| B. | True, True |
| C. | False, True |
| D. | False, False |
| Answer» C. False, True | |
| 7. |
What is use of density gradient centrifugation? |
| A. | To purify viruses, ribosomes, membranes |
| B. | Toremovedirt |
| C. | To remove fine particles |
| D. | To remove large particles |
| Answer» B. Toremovedirt | |
| 8. |
Who invented centrifugation? |
| A. | Newton |
| B. | G.G. Stokes |
| C. | Antonin Prandtl |
| D. | Al-Kindi |
| Answer» C. Antonin Prandtl | |
| 9. |
What is called centrifugation? |
| A. | Separated through spinning |
| B. | Separate components at higher temperature |
| C. | Separate components at lower temperature |
| D. | Separated through evaporation |
| Answer» B. Separate components at higher temperature | |
| 10. |
What is the principle of centrifugation? |
| A. | Sedimentation principle |
| B. | Filtration principle |
| C. | Evaporation principle |
| D. | Size reduction principle |
| Answer» B. Filtration principle | |