MCQOPTIONS
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MCQOPTIONS
This section includes 20 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. |
Which of the following order is correct regarding the thickness of layer of the materials used in the mixed media filter? |
| A. | Anthracite coal < Sand > Garnet sand |
| B. | Anthracite coal > Sand > Garnet sand |
| C. | Anthracite coal = Sand = Garnet sand |
| D. | Anthracite coal < Sand < Garnet sand |
| Answer» C. Anthracite coal = Sand = Garnet sand | |
| 2. |
Which of the following order is correct regarding the specific gravity of the materials used in the mixed media filter? |
| A. | Anthracite coal < Sand > Garnet sand |
| B. | Anthracite coal > Sand > Garnet sand |
| C. | Anthracite coal = Sand = Garnet sand |
| D. | Anthracite coal < Sand < Garnet sand |
| Answer» E. | |
| 3. |
What is the ratio in which coal, sand and garnet are present in the mixed media filter? |
| A. | 2 : 3 : 5 |
| B. | 4 : 2 : 1 |
| C. | 6 : 3 : 1 |
| D. | 1 : 2 : 3 |
| Answer» D. 1 : 2 : 3 | |
| 4. |
In mixed media filter, the filtration is done from ______ |
| A. | Fine to finer |
| B. | Coarse to coarser |
| C. | Fine to coarse |
| D. | Coarse to fine |
| Answer» E. | |
| 5. |
The size of Anthracite used in dual media filter is __________ |
| A. | 1-2mm |
| B. | 1.25-2.5mm |
| C. | 3-4mm |
| D. | 4-5mm |
| Answer» C. 3-4mm | |
| 6. |
How the performance of the rapid sand filter can be improved? |
| A. | Replacing the top 15 cm layer of sand with Anthracite |
| B. | Replacing the bottom15 cm layer of sand with Anthracite |
| C. | Increasing the thickness of a layer of sand |
| D. | Replacing 15 cm layer of Anthracite with sand |
| Answer» B. Replacing the bottom15 cm layer of sand with Anthracite | |
| 7. |
The thickness of Anthracite used in dual media filter is __________ |
| A. | 10-20cm |
| B. | 20-30cm |
| C. | 30-40cm |
| D. | 40-50cm |
| Answer» D. 40-50cm | |
| 8. |
The coarser layer used in a dual media filter is of __________ |
| A. | Sand |
| B. | Anthracite |
| C. | Garnet sand |
| D. | Rice husk |
| Answer» C. Garnet sand | |
| 9. |
WHAT_IS_THE_RATIO_IN_WHICH_COAL,_SAND_AND_GARNET_ARE_PRESENT_IN_THE_MIXED_MEDIA_FILTER??$ |
| A. | 2: 3: 5 |
| B. | 4: 2: 1 |
| C. | 6: 3: 1 |
| D. | 1: 2: 3 |
| Answer» D. 1: 2: 3 | |
| 10. |
Which of the following order is correct regarding the thickness of layer of the materials used in the mixed media filter?$ |
| A. | Anthracite coal < Sand > Garnet sand |
| B. | Anthracite coal > Sand >> Garnet sand |
| C. | Anthracite coal = Sand = Garnet sand |
| D. | Anthracite coal < Sand < Garnet sand |
| Answer» C. Anthracite coal = Sand = Garnet sand | |
| 11. |
Which of the following order is correct regarding the specific gravity of the materials used in the mixed media filter?$ |
| A. | Anthracite coal < Sand > Garnet sand |
| B. | Anthracite coal > Sand > Garnet sand |
| C. | Anthracite coal = Sand = Garnet sand |
| D. | Anthracite coal < Sand < Garnet sand |
| Answer» E. | |
| 12. |
Which of the following is the best filter in terms of rate of filtration? |
| A. | Pressure filter |
| B. | Rapid sand filter |
| C. | Dual media filter |
| D. | Mixed media filter |
| Answer» E. | |
| 13. |
In mixed media filter, the filtration is done from _____? |
| A. | Fine to finer |
| B. | Coarse to coarser |
| C. | Fine to coarse |
| D. | Coarse to fine |
| Answer» E. | |
| 14. |
The size of Anthracite used in dual media filter is |
| A. | 1-2mm |
| B. | 1.25-2.5mm |
| C. | 3-4mm |
| D. | 4-5mm |
| Answer» C. 3-4mm | |
| 15. |
How the performance of rapid sand filter can be improved? |
| A. | Replacing the top 15 cm layer of sand with Anthracite |
| B. | Replacing the bottom15 cm layer of sand with Anthracite |
| C. | Increasing the thickness of a layer of sand |
| D. | Replacing 15 cm layer of Anthracite with sand |
| Answer» B. Replacing the bottom15 cm layer of sand with Anthracite | |
| 16. |
The thickness of Anthracite used in dual media filter is |
| A. | 10-20cm |
| B. | 20-30cm |
| C. | 30-40cm |
| D. | 40-50cm |
| Answer» D. 40-50cm | |
| 17. |
The coarser layer used in a dual media filter is of |
| A. | Sand |
| B. | Anthracite |
| C. | Garnet sand |
| D. | Rice husk |
| Answer» C. Garnet sand | |
| 18. |
What is the size of sand used in a dual media filter? |
| A. | 0.5-1mm |
| B. | 1-2mm |
| C. | 2-3mm |
| D. | 3.5-4mm |
| Answer» B. 1-2mm | |
| 19. |
In which of the following filter, two layers filtering media is provided for filtration? |
| A. | Slow sand filter |
| B. | Pressure filter |
| C. | Rapid sand filter |
| D. | Dual media filter |
| Answer» E. | |
| 20. |
What is the specific gravity of Anthracite used in a dual media filter? |
| A. | 1 |
| B. | 1.4 |
| C. | 2.4 |
| D. | 4.2 |
| Answer» C. 2.4 | |