MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
FCC stands for _________ |
| A. | Fluid Cracking Catalyst |
| B. | Fluid Catalytic Cracking |
| C. | Fluid Chemical Cracking |
| D. | Fluid Chemical Catalyst |
| Answer» C. Fluid Chemical Cracking | |
| 2. |
Which of the following microbial leaching techniques depend on the working volume of less than ten cubic meter (<10m3)? |
| A. | Laboratory Scale |
| B. | Pilot-Plant Scale |
| C. | Industrial Scale |
| D. | Commercial Scale |
| Answer» C. Industrial Scale | |
| 3. |
Which among the following is the most suitable particle size of solid waste? |
| A. | Order of few tens of millimeter |
| B. | Order of few tens of centimeter |
| C. | Order of few tens of micrometer |
| D. | Order of few tens of decimeter |
| Answer» D. Order of few tens of decimeter | |
| 4. |
Microbes that exhibit a low tolerance or have become adapted to low concentrations of soluble heavy metals in the leach suspension should be selected for bioleaching. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
What kind of pH is most suitable for bioleaching in majority of the metals? |
| A. | At very low pH |
| B. | At very high pH |
| C. | At low pH |
| D. | At high pH |
| Answer» D. At high pH | |
| 6. |
Which genera helps in bioaccumulation? |
| A. | Bacillus |
| B. | Aspergillus |
| C. | Agaricus |
| D. | Mycenae |
| Answer» C. Agaricus | |
| 7. |
What kind of bacteria benefits the most from direct leaching? |
| A. | Autotrophs |
| B. | Heterotrophs |
| C. | Chemotrophs |
| D. | Chemolithotrophs |
| Answer» B. Heterotrophs | |
| 8. |
Which one of the following is not included in the mechanism of bioleaching? |
| A. | Acidolysis |
| B. | Complexolysis |
| C. | Redoxolysis |
| D. | Hydrolysis |
| Answer» E. | |
| 9. |
Which of the following is the most common bacteria used for bioleaching? |
| A. | Spirillum |
| B. | Coccus |
| C. | Bacillus |
| D. | Streptococcus |
| Answer» D. Streptococcus | |
| 10. |
Microbially catalyzed redox reaction leads to metal ________ |
| A. | Mobilization |
| B. | Immobilization |
| C. | Reduction |
| D. | Oxidation |
| Answer» B. Immobilization | |