MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
MANGANESE_OXIDATION_REQUIRES_A_HIGH_OXIDATION_POTENTIAL.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the maximum allowable flow for backwash?$ |
| A. | 20 m/hr |
| B. | 45 m/hr |
| C. | 60 m/hr |
| D. | 80 m/hr |
| Answer» D. 80 m/hr | |
| 3. |
What is the desirable bed depth for AFM filtration?$ |
| A. | 1000 mm |
| B. | 1200 mm |
| C. | 1500 mm |
| D. | 1800 mm |
| Answer» C. 1500 mm | |
| 4. |
What is the minimum required redox potential of water? |
| A. | 100 mv |
| B. | 200 mv |
| C. | 300 mv |
| D. | 400 mv |
| Answer» C. 300 mv | |
| 5. |
The aeration system will decrease the redox potential of the water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
At what pH should the water be maintained? |
| A. | 6.5 |
| B. | 7.5 |
| C. | 8.5 |
| D. | 9 |
| Answer» C. 8.5 | |
| 7. |
What is the tank volume of aeration for water flow of 50m3/h? |
| A. | 40 m<sup>3</sup> |
| B. | 50 m<sup>3</sup> |
| C. | 80 m<sup>3</sup> |
| D. | 100 m<sup>3</sup> |
| Answer» C. 80 m<sup>3</sup> | |
| 8. |
What is the minimum time of aeration? |
| A. | 20 minutes |
| B. | 40 minutes |
| C. | 60 minutes |
| D. | 80 minutes |
| Answer» D. 80 minutes | |
| 9. |
What is the permitted concentration of manganese in drinking water? |
| A. | 30 g/l |
| B. | 40 g/l |
| C. | 50 g/l |
| D. | 60 g/l |
| Answer» D. 60 g/l | |
| 10. |
In which year was the Ferrosand process patented? |
| A. | 1960 |
| B. | 1965 |
| C. | 1970 |
| D. | 1975 |
| Answer» C. 1970 | |