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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?
|
A. | nStatement 2: Particles are not separated from a solution according to their shape. |
B. | True, False |
C. | True, True |
D. | False, True |
E. | False, False |
Answer» B. True, False | |
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?
|
A. | nStatement 2: The overlying solution is placed in another centrifuge tube for progressing steps. |
B. | True, False |
C. | True, True |
D. | False, True |
E. | False, False |
Answer» C. True, 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 | |