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This section includes 6 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. | CO<sub>2</sub> |
B. | H<sub>2</sub>O |
C. | H<sub>2</sub>S |
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 | |