Waste water Engineering Mock test – 3 || Civil Engineering Mock tests



Welcome to your Waste Water Engineering Mock test - 3
Take an exciting test in Waste water Engineering
You have only 20 mins to complete the test (25 Questions)
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1. The recommended detention period for grit chambers is
2. The self-cleansing velocity of water flowing through pipe lines, is
3. For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed
4. Ventilating shafts are provided to a sewer line at every
5. The pH value of fresh sewage is usually
6. Pick up the correct statement from the following :
7. Inter-distance between ventilation columns in a sewer line is kept
8. The algae dies out in the zone of
9. Pick up the correct statement from the following :
10. The sludge does not contain waste water from
11. For trunk and out-fall, the type of sewers generally used, is
12. Sluge banks are formed if sewage is disposed of in
13. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
14. Which one of the following part of human body withstands minimum radiation
15. The pH value of sewage is determined with the help of
16. Lead caulked joints are used for laying
17. PH value of sludge during alkaline regression stage, is
18. If the peak discharge of a storm water drain (S.W. Drain) is e.xpected to exceed 150 cumecs, the free board to be provided, is
19. The spacing of bars of perforations of fine screens used for the treatment of sewage, is
20. Hydraulic mean radius is
21. The moisture content of a sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is
22. PH value of sludge during alkaline regression stage, is
23. Depletion of ozone layer in the outer atmosphere may cause
24. The maximum diameter of sewers adopted in the designs is
25. The sewer pipe which carries sewage from a building for immediate disposal is
26. Primary treatment of sewage consists of removal of






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