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 temperature of 20 C is used to take BOD of _________ |
| A. | 7-days |
| B. | 10-days |
| C. | 5- days |
| D. | 1-day |
| Answer» D. 1-day | |
| 2. |
Which of the following is used where there is no oxygen supply? |
| A. | Comminutors |
| B. | Sedimentation tank |
| C. | Mechanical mixer |
| D. | Screening devices |
| Answer» D. Screening devices | |
| 3. |
Trickling filters are less suitable for a larger volume of effluents. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Velocity channels are used to remove larger suspended particles. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
UASB was developed in __________ |
| A. | America |
| B. | Netherlands |
| C. | London |
| D. | Japan |
| Answer» C. London | |
| 6. |
Which of the following is not the use of anaerobic treatment? |
| A. | Achieving higher loading rates |
| B. | Low power to treat BOD |
| C. | The metabolization of organic matter |
| D. | High levels of microbial growth |
| Answer» E. | |
| 7. |
What is the use of venturi? |
| A. | To generate low-pressure |
| B. | To remove grit |
| C. | To generate high pressure |
| D. | To break the foam |
| Answer» B. To remove grit | |
| 8. |
Who described the use of contactors in wastewater treatment? |
| A. | Ware and Pescod |
| B. | Arden and Lockett |
| C. | Cooper and Wheeldon |
| D. | Taylor and Senior |
| Answer» B. Arden and Lockett | |
| 9. |
The diameter of a conventional trickling filter is _______ |
| A. | 5-8 m |
| B. | 5-10 m |
| C. | 1-10 m |
| D. | 8-16 m |
| Answer» E. | |
| 10. |
Which is the use of comminutors? |
| A. | To reduce the size of particles |
| B. | To remove the grit |
| C. | To remove large particles |
| D. | To remove small particles |
| Answer» B. To remove the grit | |
| 11. |
What is the function of a sedimentation tank? |
| A. | Removal of larger suspended matter |
| B. | Reduction in particle size |
| C. | Removal of grit |
| D. | Removal of finer matter |
| Answer» E. | |
| 12. |
Which of the following is a primary treatment? |
| A. | Sedimentation |
| B. | Activated sludge |
| C. | Sand filters |
| D. | Microstrainers |
| Answer» B. Activated sludge | |
| 13. |
Who described the disposal of antibodies and steroid wastes? |
| A. | Colovos and Tinklenberg |
| B. | Zajic and Melcher |
| C. | Smith |
| D. | Mbagwu and Ekwealor |
| Answer» B. Zajic and Melcher | |
| 14. |
Which of the following is not a factor to investigate in a site survey? |
| A. | BOD/COD |
| B. | Sterility |
| C. | Colour |
| D. | Radioactivity |
| Answer» C. Colour | |
| 15. |
Which of the following is the method for disposal of municipal solid waste? |
| A. | Incineration |
| B. | Landfilling |
| C. | Well disposal |
| D. | Spray irrigation |
| Answer» C. Well disposal | |