MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Calculate the area required for the system consisting of biox media for the following data.Flow: 500 m3/h.BOD: 500 mg/L |
| A. | 8 m3 |
| B. | 3.4 m3 |
| C. | 3 m3 |
| D. | 4.4 m3 |
| Answer» C. 3 m3 | |
| 2. |
What is the efficiency in reducing the BOD of a tank consisting f Biox media |
| A. | 90% |
| B. | 80% |
| C. | 85% |
| D. | 95% |
| Answer» B. 80% | |
| 3. |
What is the depth of biox media generally considered for an aeration tank? |
| A. | 1.2 m |
| B. | 3 m |
| C. | 5 m |
| D. | 2.5 m |
| Answer» B. 3 m | |
| 4. |
Calculate the volume of the tank for the following information.BOD: 400 mg/LFlow: 3500 m3/hLoading rate of media: 3.5 Kg/ m3/day |
| A. | 9600 m3 |
| B. | 9000 m3 |
| C. | 2000 m3 |
| D. | 4000 m3 |
| Answer» E. | |
| 5. |
Which of the following is a disadvantage of MBR? |
| A. | Catalyst regeneration |
| B. | Flow characteristics |
| C. | Catalyst cost |
| D. | Heat transfer |
| Answer» E. | |
| 6. |
CALCULATE_THE_AREA_REQUIRED_FOR_THE_SYSTEM_CONSISTING_OF_BIOX_MEDIA_FOR_THE_FOLLOWING_DATA.?$ |
| A. | |
| B. | |
| Answer» C. | |
| 7. |
WHAT_IS_THE_EFFICIENCY_IN_REDUCING_THE_BOD_OF_A_TANK_CONSISTING_F_BIOX_MEDIA?$ |
| A. | 90% |
| B. | 80% |
| C. | 85% |
| D. | 95% |
| Answer» B. 80% | |
| 8. |
What is the depth of biox media generally considered for an aeration tank? |
| A. | 1.2 m |
| B. | 3 m |
| C. | 5 m |
| D. | 2.5 m |
| Answer» B. 3 m | |
| 9. |
What is the load considered for biox media? |
| A. | 1.8 kg/ m<sup>3</sup> |
| B. | 2.6 kg/ m<sup>3</sup> |
| C. | 6 kg/m<sup>3</sup> |
| D. | 3.6 kg/m<sup>3</sup> |
| Answer» B. 2.6 kg/ m<sup>3</sup> | |
| 10. |
Which of the following is an advantage of MBR? |
| A. | Heat transfer |
| B. | Fluid reactant |
| C. | Solid distribution |
| D. | Selectivity |
| Answer» E. | |
| 11. |
Reactants enter from the bottom in MBR. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Moving bed reactors are closed systems. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
_______ flows along with the reactants in MBR. |
| A. | Pollutants |
| B. | Microbes |
| C. | Disinfectants |
| D. | Catalytic materials |
| Answer» E. | |