MCQOPTIONS
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MCQOPTIONS
This section includes 14 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 flocculation volume for an HRSCC for the following data.Flow: 300 m3/h. |
| A. | 40 m3 |
| B. | 90 m3 |
| C. | 75 m3 |
| D. | 100 m3 |
| Answer» D. 100 m3 | |
| 2. |
Calculate the surface area of the flocculation zone for the following data.Flow: 300 m3/h.Rise rate :1.2 m/h |
| A. | 240 m2 |
| B. | 250 m2 |
| C. | 350 m2 |
| D. | 160 m2 |
| Answer» C. 350 m2 | |
| 3. |
Calculate the diameter of the flocculation zone for the following data:Flow: 200 m3/h.Height considered (SWD):3.5 m |
| A. | 6.1 m |
| B. | 9.8 m |
| C. | 10.8 m |
| D. | 10.7 m |
| Answer» B. 9.8 m | |
| 4. |
Calculate the volume of the flocculation zone for a clariflocculator for the following data.Flow: 500 m3/h. |
| A. | 250 m3 |
| B. | 325 m3 |
| C. | 425 m3 |
| D. | 525 m3 |
| Answer» B. 325 m3 | |
| 5. |
The liquid tends to move up through the interstices of contacting particles because of _______ |
| A. | High turbidity |
| B. | Low turbidity |
| C. | High concentration of particles |
| D. | Low concentration of particles |
| Answer» D. Low concentration of particles | |
| 6. |
Hindered zone settling refers to the suspensions of intermediate concentration. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Orifice placement is critical to the successful operation of the clarifier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Radial tube header is designed to remove _______ |
| A. | Suspended solids |
| B. | Backwash water |
| C. | Settled solids |
| D. | Floating matter |
| Answer» D. Floating matter | |
| 9. |
What does MLSS stand for? |
| A. | Mixed Liquor Soluble Solvents |
| B. | Mixed Liquor Suspended solids |
| C. | Mixed Liquor Suspended Solvents |
| D. | Major Liquid Soluble Solids |
| Answer» C. Mixed Liquor Suspended Solvents | |
| 10. |
What does EDI stand for? |
| A. | Energy discharge inlet |
| B. | Energy diode indicator |
| C. | Effluent discharge inlet |
| D. | Energy dissipating inlet |
| Answer» E. | |
| 11. |
Micro-organisms metabolize the _______that exists after primary clarification. |
| A. | Chemicals |
| B. | Coagulant |
| C. | Ions |
| D. | Biological waste |
| Answer» E. | |
| 12. |
What is the mixed liquor? |
| A. | Influent |
| B. | Effluent |
| C. | Intermediate |
| D. | Liquid |
| Answer» B. Effluent | |
| 13. |
What does SSCC stand for? |
| A. | Spiral scraper clarifier type |
| B. | Suction header clarifier type |
| C. | Up-flow pipe clarifier type |
| D. | Perimeter feed clarifier |
| Answer» B. Suction header clarifier type | |
| 14. |
Which is the special feature of secondary clarifier? |
| A. | Sludge collection |
| B. | Sludge withdrawal |
| C. | Launder covers |
| D. | Spiral scraper |
| Answer» E. | |