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. 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
2. Which one of the following part of human body withstands minimum radiation
3. The sludge does not contain waste water from
4. The algae dies out in the zone of
5. The recommended detention period for grit chambers is
6. Pick up the correct statement from the following :
7. For trunk and out-fall, the type of sewers generally used, is
8. PH value of sludge during alkaline regression stage, is
9. Lead caulked joints are used for laying
10. Pick up the correct statement from the following :
11. The spacing of bars of perforations of fine screens used for the treatment of sewage, is
12. The pH value of sewage is determined with the help of
13. The sewer pipe which carries sewage from a building for immediate disposal is
14. The maximum diameter of sewers adopted in the designs is
15. PH value of sludge during alkaline regression stage, is
16. Primary treatment of sewage consists of removal of
17. Hydraulic mean radius is
18. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
19. The self-cleansing velocity of water flowing through pipe lines, is
20. 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
21. Depletion of ozone layer in the outer atmosphere may cause
22. The pH value of fresh sewage is usually
23. Inter-distance between ventilation columns in a sewer line is kept
24. 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
25. Sluge banks are formed if sewage is disposed of in
26. Ventilating shafts are provided to a sewer line at every






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