MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
Which among the following is not a caused due to presence of heavy metals in the soil micro-biome during a remediation process? |
| A. | Increased mobilization of heavy metals |
| B. | Inhibition of biological processes |
| C. | Iron precipitation |
| D. | Increase in soil fertility |
| Answer» E. | |
| 2. |
If the majority of the mechanism of bio-remediation process is an anaerobic process, then oxygen presence becomes toxic. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Some soil remediation processes enhance the presiding micro-bacteria and bio-augment the clean-up process by adding fungi to the respective soil. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Aerobic bio degradation has a minimum oxygen requirement of __________ |
| A. | 0.5 mg/litre |
| B. | 2 mg/litre |
| C. | 1 mg/litre |
| D. | 1.5 mg/litre |
| Answer» C. 1 mg/litre | |
| 5. |
Bioaugmentation requires the introduction of selected microbes to bring about the remediation process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Bio enhancement stimulates the existing micro fauna by ______ |
| A. | Manipulating the local environmental conditions |
| B. | Entering the food chain |
| C. | Increasing dissolved oxygen |
| D. | Producing methane gas |
| Answer» B. Entering the food chain | |
| 7. |
Functional biology is usually described as a process of bio enhancement (and/or) ____________ |
| A. | Bio augmentation |
| B. | Bio-accumulation |
| C. | Bio-degradation |
| D. | Bio-magnification |
| Answer» B. Bio-accumulation | |
| 8. |
Which of the following treatment options is not suitable for areas where contaminants don t cause a potential harm to human health and the environment? |
| A. | Natural attenuation |
| B. | Passive remediation |
| C. | Bio attenuation |
| D. | Live attenuated |
| Answer» E. | |
| 9. |
Which among the following does not determine the suitability of soil remediation? |
| A. | Nutrient availability |
| B. | Presence of other inhibitory contaminants |
| C. | Oxygenation |
| D. | Pathogens |
| Answer» E. | |
| 10. |
Which of the following type of soil is suitable for soil remediation? |
| A. | Peaty Soil |
| B. | Sandy soil |
| C. | Less or no organic content soil |
| D. | Soil with gravels |
| Answer» B. Sandy soil | |
| 11. |
20-30 C is the ideal range for bioremediation as it optimizes _______ |
| A. | Enzyme activity |
| B. | Temperature |
| C. | Pressure |
| D. | pH |
| Answer» B. Temperature | |
| 12. |
What is the preferable range of temperature for bioremediation by soil microorganisms? |
| A. | 0-50 C |
| B. | 50-60 C |
| C. | 80-100 C |
| D. | 120-150 C |
| Answer» B. 50-60 C | |
| 13. |
Bio remediation does not rely on the natural abilities of soil micro-organisms. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Which among the following is not considered as the principal environmental factor? |
| A. | pH |
| B. | Temperature |
| C. | Soil type |
| D. | Pressure |
| Answer» E. | |