MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Reverse osmosis is used in the treatment of waste water to remove the suspended solids from the water. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Efficient wastewater treatment is done by segregating various waste streams and treating them separately. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following process involves addition of chemical followed by rapid mixing? |
| A. | Coagulation |
| B. | Sedimentation |
| C. | Filtration |
| D. | Ultra filtration |
| Answer» B. Sedimentation | |
| 4. |
Which of following physical methods cannot be used for treatment of waste water? |
| A. | Sedimentation |
| B. | Floatation |
| C. | Filtration |
| D. | Chlorination |
| Answer» E. | |
| 5. |
__________ method is used for water disinfection. |
| A. | Chlorination |
| B. | Floatation |
| C. | Flocculation |
| D. | Filtration |
| Answer» B. Floatation | |
| 6. |
Pathogens can be removed by action of microbial biofilms. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following compound is broken down by the microbial biofilms in the waste water? |
| A. | Iron |
| B. | Nitrogen |
| C. | Sodium |
| D. | Potassium |
| Answer» C. Sodium | |
| 8. |
The biofilms can be engineered for bio degradation and bio transformation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which of the following organisms represent the natural living style as biofilms? |
| A. | Microbial communities |
| B. | Fungi |
| C. | Protozoa |
| D. | Animals |
| Answer» B. Fungi | |
| 10. |
Which of the following methods can be used to separate phosphates from insoluble precipitates? |
| A. | Sedimentation |
| B. | Temperature |
| C. | pH |
| D. | Volume |
| Answer» B. Temperature | |
| 11. |
Which of the following is the main source of eutrophication? |
| A. | Effluent quality |
| B. | Nitrogen |
| C. | Salty water |
| D. | Pure water |
| Answer» C. Salty water | |