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






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