MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
The use of flat disc in the turbine is to ensure the bulk of energy consumption occurs at blades. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The nozzle sparger does not get blocked. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Who developed the combined-agitator sparger? |
| A. | Herbert |
| B. | Rivett |
| C. | Johnson |
| D. | Peterson |
| Answer» B. Rivett | |
| 4. |
Which of the following sparger is made of ceramic or metals? |
| A. | Porous sparger |
| B. | Orifice sparger |
| C. | Nozzle sparger |
| D. | Combined sparger-agitator |
| Answer» B. Orifice sparger | |
| 5. |
Which of the following is not the use of baffles? |
| A. | Increase the effect of agitation |
| B. | Improve aeration efficiency |
| C. | Improve cooling capacity |
| D. | Improve the fermenter capacity |
| Answer» E. | |
| 6. |
Which of the following seal assembly has not been used in stirrer glands and bearings? |
| A. | Stuffing box |
| B. | Bush seal |
| C. | Electric drive |
| D. | Mechanical seal |
| Answer» D. Mechanical seal | |
| 7. |
Which of the following is not the type of modern agitator? |
| A. | SCABA |
| B. | Prochem Maxflo |
| C. | Lightning A315 |
| D. | New Brunswick Scientific |
| Answer» E. | |
| 8. |
Which of the following agitator consists of blades directly attached to a boss on agitator shaft? |
| A. | vaned discs |
| B. | disc turbines |
| C. | rectangular turbines |
| D. | marine propeller |
| Answer» C. rectangular turbines | |
| 9. |
Which of the following agitator consists of vanes attached vertically inside? |
| A. | vaned discs |
| B. | disc turbines |
| C. | variable pitch turbines |
| D. | marine propeller |
| Answer» B. disc turbines | |
| 10. |
Which of the following agitator consists of vanes in a vertical plane around the circumference? |
| A. | vaned discs |
| B. | disc turbines |
| C. | variable pitch turbines |
| D. | marine propeller |
| Answer» C. variable pitch turbines | |
| 11. |
Which of the following is not the component of aeration and agitation system? |
| A. | Impeller |
| B. | Baffles |
| C. | Stirrer gland and bearing |
| D. | Thermometer |
| Answer» E. | |
| 12. |
The agitator is required to _________ |
| A. | Provide air |
| B. | Mixing objectives |
| C. | Purify the product |
| D. | Sterilize the media |
| Answer» C. Purify the product | |
| 13. |
The non-agitated fermentations are carried out in vessels of a height/diameter ratio of ________ |
| A. | 1:2 |
| B. | 5:1 |
| C. | 3:2 |
| D. | 4:1 |
| Answer» C. 3:2 | |
| 14. |
The Aeration is mainly provided to organisms present in _______ |
| A. | Submerged culture |
| B. | Solid State culture |
| C. | Surface culture |
| D. | Batch culture |
| Answer» B. Solid State culture | |
| 15. |
The purpose of aeration is to provide ___________ |
| A. | The medium to organisms |
| B. | The carbon dioxide to organisms |
| C. | The oxygen to organisms |
| D. | The water to organisms |
| Answer» D. The water to organisms | |