MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
1% of phenol acts as ___________ |
| A. | Antiseptic |
| B. | Disinfectant |
| C. | Antibiotics |
| D. | Antigen |
| Answer» C. Antibiotics | |
| 2. |
Which of the following is a typical aeration rate for aerobic fermentation? |
| A. | 0.5 – 2 vvm |
| B. | 1 – 2 vvm |
| C. | 0.1 – 0.5 vvm |
| D. | 3 – 4 vvm |
| Answer» B. 1 – 2 vvm | |
| 3. |
Which of the following cannot be sterilized by steam? |
| A. | Air |
| B. | Water |
| C. | Fermenter vessels |
| D. | Fermentation media |
| Answer» B. Water | |
| 4. |
The absolute filters have fixed-pore size. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following is not an example of depth filters? |
| A. | PTFE membranes |
| B. | Glass fiber |
| C. | Cotton |
| D. | Sintered Metals |
| Answer» B. Glass fiber | |
| 6. |
Non-Fixed filters are also called as absolute filters. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The heat reactive medium can be sterilized best by _____________ |
| A. | Continuous sterilization |
| B. | Batch sterilization |
| C. | Filter sterilization |
| D. | Heat sterilization |
| Answer» D. Heat sterilization | |
| 8. |
What is the pore size of the nitrocellulose? |
| A. | 0.25 µ |
| B. | 0.28 µ |
| C. | 0.22 µ |
| D. | 0.20 µ |
| Answer» D. 0.20 µ | |
| 9. |
Which of the following filters is the most commonly used? |
| A. | Nitrocellulose |
| B. | Filter paper |
| C. | Sieve tubes |
| D. | Cellophane |
| Answer» B. Filter paper | |
| 10. |
The particles which are larger than the filter pores are removed by ________ |
| A. | Inertial Impaction |
| B. | Diffusion |
| C. | Electrostatic attraction |
| D. | Interception |
| Answer» E. | |
| 11. |
The optimum temperature for pasteurisation is _____________ |
| A. | 62°C – 65°C |
| B. | 60°C – 65°C |
| C. | 62°C – 72°C |
| D. | 65°C – 75°C |
| Answer» D. 65°C – 75°C | |
| 12. |
In which of the following the oppositely charged particles are attracted? |
| A. | Inertial Impaction |
| B. | Diffusion |
| C. | Electrostatic attraction |
| D. | Interception |
| Answer» D. Interception | |
| 13. |
Brownian motion occurs in ___________ |
| A. | Inertial Impaction |
| B. | Diffusion |
| C. | Electrostatic attraction |
| D. | Interception |
| Answer» C. Electrostatic attraction | |
| 14. |
In which of the following the large aerosol particles are deposited on the walls of airway conduit? |
| A. | Inertial Impaction |
| B. | Diffusion |
| C. | Electrostatic attraction |
| D. | Interception |
| Answer» B. Diffusion | |
| 15. |
Which of the following is the method of filter sterilization? |
| A. | Osmosis |
| B. | Diffusion |
| C. | Double Diffusion |
| D. | Sitting Drop |
| Answer» C. Double Diffusion | |