MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
What is the height of the anthracite maintained in a dual media filter? |
| A. | 1.5-1.8 m |
| B. | 2.2 -2.4 m |
| C. | 2.5-2.8 m |
| D. | 2.8-3.0 m |
| Answer» B. 2.2 -2.4 m | |
| 2. |
What is the limit of turbidity which a 2 stage filtration a handle? |
| A. | 180 NTU |
| B. | <100 NTU |
| C. | 50 NTU |
| D. | 200 NTU |
| Answer» C. 50 NTU | |
| 3. |
What is the turbidity achieved by using a rapid filtration system? |
| A. | 0.1 NTU |
| B. | 0.7 NTU |
| C. | 1.5 NTU |
| D. | 0.9 NTU |
| Answer» B. 0.7 NTU | |
| 4. |
Calculate the breadth of the rapid sand filter for the following details.Flow: 500 m3/h.Velocity: 5 m/hBackwash time: 20 mins |
| A. | 4.5 m |
| B. | 5.7 m |
| C. | 3.7 m |
| D. | 7.5 m |
| Answer» D. 7.5 m | |
| 5. |
Calculate the length of the rapid sand filter for the following details.Flow: 1000 m3/h.Velocity: 5m/hBackwash time: 30 mins |
| A. | 1.0 m |
| B. | 1.9 m |
| C. | 1.7 m |
| D. | 1.2 m |
| Answer» C. 1.7 m | |
| 6. |
Calculate the area of the rapid sand filter for the following details.Flow: 2000 m3/h.Velocity: 5m/hBackwash time: 30 mins |
| A. | 18 m2 |
| B. | 20 m2 |
| C. | 22 m2 |
| D. | 16 m2 |
| Answer» B. 20 m2 | |
| 7. |
What is the limit of turbidity which a 2 stage filtration a handle?$ |
| A. | 180 NTU |
| B. | <100 NTU |
| C. | 50 NTU |
| D. | 200 NTU |
| Answer» C. 50 NTU | |
| 8. |
What_is_the_turbidity_achieved_by_using_a_rapid_filtration_system?$ |
| A. | 0.1 NTU |
| B. | 0.7 NTU |
| C. | 1.5 NTU |
| D. | 0.9 NTU |
| Answer» B. 0.7 NTU | |
| 9. |
What is the height maintained of a deep bed monomedia? |
| A. | 1.5-1.8 m |
| B. | 2.2 -2.4 m |
| C. | 2.5-2.8 m |
| D. | 2.8-3.0 m |
| Answer» B. 2.2 -2.4 m | |
| 10. |
What_is_the_height_of_the_anthracite_maintained_in_a_dual_media_filter? |
| A. | 1.5-1.8 m |
| B. | 2.2 -2.4 m |
| C. | 2.5-2.8 m |
| D. | 2.8-3.0 m |
| Answer» B. 2.2 -2.4 m | |
| 11. |
For a rapid sand filter, what is the ratio of length: breadth while designing it? |
| A. | 1:2 |
| B. | 1:3 |
| C. | 2:3 |
| D. | 4:1 |
| Answer» C. 2:3 | |
| 12. |
The direction of water in filter beds is reversed for ______ |
| A. | Filtration |
| B. | Cleaning |
| C. | Decreasing velocity |
| D. | Decreasing flow |
| Answer» C. Decreasing velocity | |
| 13. |
Which of the following processes is not done before rapid filtration? |
| A. | Mixing |
| B. | Flocculation |
| C. | Sedimentation |
| D. | Chlorination |
| Answer» E. | |
| 14. |
Pressure flow is considered in rapid filtration. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Rapid sand filters require large area compared to slow sand filters. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
When was the rapid sand filer first used? |
| A. | 1930 |
| B. | 1920 |
| C. | 1950 |
| D. | 1960 |
| Answer» C. 1950 | |