MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the correct statement from the following options. |
| A. | Rapid sand filter has a high initial cost |
| B. | Coagulation is essential in slow sand filter |
| C. | Slow sand filter requires skilled supervision |
| D. | Period of cleaning of Rapid sand filter is 1-2 days |
| Answer» E. | |
| 2. |
The filtration rate of a slow sand filter is _____ litres of water per square metre. |
| A. | 20 |
| B. | 30 |
| C. | 50 |
| D. | 100 |
| Answer» E. | |
| 3. |
In the ________ zone of purification in filter media, bacteria oxidizes the organic matter completely. |
| A. | Autotrophic |
| B. | Heterotrophic |
| C. | Schmutzdecke |
| D. | Electrolytic |
| Answer» C. Schmutzdecke | |
| 4. |
Schmutzdecke acts as an extremely fine meshed straining mat. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
In which action of filtration, colloidal particles are removed? |
| A. | Mechanical Straining |
| B. | Sedimentation |
| C. | Biological mechanism |
| D. | Electrolytic action |
| Answer» C. Biological mechanism | |
| 6. |
THE_FILTRATION_RATE_OF_A_SLOW_SAND_FILTER_IS_______LITRES_OF_WATER_PER_SQUARE_METRE.?$ |
| A. | 20 |
| B. | 30 |
| C. | 50 |
| D. | 100 |
| Answer» E. | |
| 7. |
Identify the correct statement from the following options.$ |
| A. | Rapid sand filter has a high initial cost |
| B. | Coagulation is essential in slow sand filter |
| C. | Slow sand filter requires skilled supervision |
| D. | Period of cleaning of Rapid sand filter is 1-2 days |
| Answer» E. | |
| 8. |
In the ________ zone of purification in filter media, bacteria oxidizes the organic matter completely? |
| A. | Autotrophic |
| B. | Heterotrophic |
| C. | Schmutzdecke |
| D. | Electrolytic |
| Answer» C. Schmutzdecke | |
| 9. |
What is the color of the surface coating formed during the filtration process? |
| A. | White |
| B. | Brown |
| C. | Green |
| D. | Reddish brown |
| Answer» E. | |
| 10. |
In which type of filter, rate of filtration is low? |
| A. | Slow sand filter |
| B. | Rapid sand filter |
| C. | Gravity filter |
| D. | Pressure filter |
| Answer» B. Rapid sand filter | |
| 11. |
In which action of filtration, removal of particulate matter takes place? |
| A. | Mechanical Straining |
| B. | Sedimentation |
| C. | Biological mechanism |
| D. | Electrolytic action |
| Answer» E. | |
| 12. |
Which is the first zone of purification in a sand bed? |
| A. | Autotrophic zone |
| B. | Heterotrophic zone |
| C. | Schmutzdecke zone |
| D. | Electrolytic zone |
| Answer» D. Electrolytic zone | |
| 13. |
In which action of filtration, colloidal particles is removed? |
| A. | Mechanical Straining |
| B. | Sedimentation |
| C. | Biological mechanism |
| D. | Electrolytic action |
| Answer» C. Biological mechanism | |
| 14. |
In which action of filtration, particles coarser than the void size is arrested? |
| A. | Mechanical Straining |
| B. | Sedimentation |
| C. | Biological mechanism |
| D. | Electrolytic action |
| Answer» B. Sedimentation | |
| 15. |
Which of the following statement is wrong regarding filtration? |
| A. | It removes fine particle |
| B. | It removes suspended solids not removed by sedimentation |
| C. | It does not remove turbidity |
| D. | It removes color |
| Answer» D. It removes color | |