MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Fermentation Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Who claimed that oxygen balance technique is suitable for only small-scale fermenters? |
| A. | Cooper |
| B. | Humphrey |
| C. | Wang |
| D. | Taguchi |
| Answer» D. Taguchi | |
| 2. |
The above Crit value is the efficient value for oxygen concentration. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The oxygen balance technique is used for gas-gas transfer. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Which of the following is not a measuring parameter in oxygen-balance technique? |
| A. | Area of the vessel |
| B. | Temperature |
| C. | Pressure |
| D. | Volume |
| Answer» B. Temperature | |
| 5. |
Who described the dynamic method of gassing out? |
| A. | Cooper and Humphrey |
| B. | Humphrey and Taguchi |
| C. | Wise and Schwan |
| D. | Taguchi and Schwan |
| Answer» C. Wise and Schwan | |
| 6. |
Which of the following was used to gas out oxygen in the dynamic method of gassing-out? |
| A. | Growing culture |
| B. | Nitrogen gas |
| C. | Dead cells |
| D. | Helium |
| Answer» B. Nitrogen gas | |
| 7. |
Who described the static method of gassing-out? |
| A. | Cooper |
| B. | Humphrey |
| C. | Wise |
| D. | Taguchi |
| Answer» D. Taguchi | |
| 8. |
Which of the following is not a surface active contaminant? |
| A. | Proteins |
| B. | Fatty acids |
| C. | Nucleic acids |
| D. | Lipids |
| Answer» D. Lipids | |
| 9. |
Which of the following does not require the measurement of DO concentration? |
| A. | Oxygen-balance technique |
| B. | Sulphite oxidation technique |
| C. | Static method of gassing out |
| D. | Dynamic method of gassing out |
| Answer» C. Static method of gassing out | |
| 10. |
Who described the sulphite oxidation technique? |
| A. | Cooper |
| B. | Humphrey |
| C. | Wise |
| D. | Taguchi |
| Answer» B. Humphrey | |
| 11. |
Which of the following is the method of determination of KLa values? |
| A. | Oxygen-balance technique |
| B. | Sulphite oxidation technique |
| C. | Static method of gassing out |
| D. | Dynamic method of gassing in |
| Answer» E. | |
| 12. |
The unit of KLa is __________ |
| A. | cm<sup>2</sup> |
| B. | h<sup>-1</sup> |
| C. | cm<sup>3</sup> |
| D. | cm h<sup>-1</sup> |
| Answer» C. cm<sup>3</sup> | |
| 13. |
The rate of oxygen tranfer is given by equation ____________ |
| A. | dC<sub>L</sub>/dt = K<sub>L</sub>a (C* C<sub>L</sub>) |
| B. | dC<sub>L</sub>/dt = K<sub>L</sub>a (C*) |
| C. | dC<sub>L</sub>/dn = K<sub>L</sub>a (C<sub>L</sub>) |
| D. | dC<sub>L</sub>/dn = K<sub>L</sub>a (C* C<sub>L</sub>) |
| Answer» B. dC<sub>L</sub>/dt = K<sub>L</sub>a (C*) | |
| 14. |
Which of the following is not a fermenter? |
| A. | Bioflo |
| B. | Biostat B |
| C. | New Brunswick |
| D. | Blustar |
| Answer» E. | |