Water Supply & Sanitation Engineering Online Test – Paper 1

1. The last trap provided in a house drainage system is:

2. Any trap is intended to trap foul gases with the provision of:

3. The color of septic sewage is:

4. Nahni trap is made of:

5. In the partially ventilated single-stack system of plumbing, the number of vertical pipes is:

6. Flush air inlets are sometimes called:

7. A structure constructed to remove obstacles in the sewer is known as:

8. A lamp hole is helpful in:

9. Before entering a manhole, a candle is lowered into the manhole:

10. Drop manholes are provided on sewers in:

11. The best sewer material to resist hydrogen sulfide corrosion is:

12. Stoneware pipes are generally not used for sewer mains because they are:

13. Which is in the correct order?

14. Clean out is provided in the underground......sewer in place of manhole.

15. Sewer preferred for a combined system of sewage is:

16. The pipe joint commonly used in a pumping station is

17. In order to consider temperature changes, metal pipes are usually provided with

18. The type of joint generally used in cast-iron pipes is

19. The types of joint not used to resist shock, vibration, etc. is

20. The type of joint used in joining the plain ends of cast-iron pipes is