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 regarding Cast iron sewer. |
| A. | They have low internal pressure |
| B. | They are not leakage proof |
| C. | They cannot withstand heavy external loads |
| D. | They are preferred in water supply lines |
| Answer» E. | |
| 2. |
The range of diameter of cast iron sewer is __________ |
| A. | 20-100mm |
| B. | 150-750mm |
| C. | 40-250mm |
| D. | 100-250mm |
| Answer» C. 40-250mm | |
| 3. |
The cement concrete sewers are lined with vitrified clay lining to prevent __________ |
| A. | Dampness of sewer |
| B. | Algae growth in the sewer |
| C. | Crown corrosion |
| D. | Foul smell of sewer |
| Answer» D. Foul smell of sewer | |
| 4. |
The crown corrosion takes place due to formation of __________ |
| A. | CO2 |
| B. | H2O |
| C. | H2S |
| D. | HCl |
| Answer» D. HCl | |
| 5. |
The grade of concrete used in plain cement concrete sewer is __________ |
| A. | M5 |
| B. | M10 |
| C. | M15 |
| D. | M20 |
| Answer» E. | |
| 6. |
The diameter of plain cement concrete pipes used for sewerage system is __________ |
| A. | 20mm |
| B. | 30mm |
| C. | 90mm |
| D. | 63mm |
| Answer» D. 63mm | |
| 7. |
IDENTIFY_THE_CORRECT_STATEMENT_FROM_THE_FOLLOWING_REGARDING_CAST_IRON_SEWER.?$ |
| A. | They have low internal pressure |
| B. | They are not leakage proof |
| C. | They cannot withstand heavy external loads |
| D. | They are preferred in water supply lines |
| Answer» E. | |
| 8. |
The range of diameter of cast iron sewer i? |
| A. | 20-100mm |
| B. | 150-750mm |
| C. | 40-250mm |
| D. | 100-250mm |
| Answer» C. 40-250mm | |
| 9. |
Which of the following is incorrect regarding Stoneware sewer? |
| A. | They can withstand tensile stress |
| B. | They are highly resistant to sulfide corrosion |
| C. | They have smooth interior |
| D. | They are high compressive strength |
| Answer» B. They are highly resistant to sulfide corrosion | |
| 10. |
Which of the following method is not used for treating crown corrosion? |
| A. | Full runs of sewer |
| B. | Increasing the sulfate content of sewage |
| C. | Aeration and chlorination of sewage |
| D. | Vitrified clay lining of sewer |
| Answer» C. Aeration and chlorination of sewage | |
| 11. |
The cement concrete sewers are lined with vitrified clay lining to prevent |
| A. | Dampness of sewer |
| B. | Algae growth in the sewer |
| C. | Crown corrosion |
| D. | Foul smell of sewer |
| Answer» D. Foul smell of sewer | |
| 12. |
The crown corrosion takes place due to formation of |
| A. | CO<sup>2</sup> |
| B. | H<sup>2</sup>O |
| C. | H<sup>2</sup>S |
| D. | HCl |
| Answer» D. HCl | |
| 13. |
Which of the following is incorrect regarding Cement concrete sewers? |
| A. | They are economical |
| B. | Can be manufactured at the site |
| C. | They can be made of any desired strength |
| D. | They cannot withstand tensile stress |
| Answer» E. | |
| 14. |
The grade of concrete used in plain cement concrete sewer is |
| A. | M5 |
| B. | M10 |
| C. | M15 |
| D. | M20 |
| Answer» E. | |
| 15. |
The diameter of plain cement concrete pipes used for sewerage system is |
| A. | 20mm |
| B. | 30mm |
| C. | 90mm |
| D. | 63mm |
| Answer» D. 63mm | |