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SSC JE Civil Engineering Preliminary Exam in January 2018 | Practice test Day – 49



Welcome to your SSC JE Civil Engineering 2018 Objective Exam Practice test Day - 49
Take an exciting test in SSC JE Civil Preliminary Exam in January 2018. 
You have only 20 mins to complete the test (25 Questions)
Wish you all the best!!!
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1. The algae dies out in the zone of
2. The pH value of fresh sewage is usually
3. Depletion of ozone layer in the outer atmosphere may cause
4. Pick up the correct statement from the following :
5. Primary treatment of sewage consists of removal of
6. For trunk and out-fall, the type of sewers generally used, is
7. The sludge does not contain waste water from
8. PH value of sludge during alkaline regression stage, is
9. 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
10. Which one of the following part of human body withstands minimum radiation
11. Hydraulic mean radius is
12. The sewer pipe which carries sewage from a building for immediate disposal is
13. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
14. The pH value of sewage is determined with the help of
15. PH value of sludge during alkaline regression stage, is
16. Inter-distance between ventilation columns in a sewer line is kept
17. Lead caulked joints are used for laying
18. The maximum diameter of sewers adopted in the designs is
19. Sluge banks are formed if sewage is disposed of in
20. The self-cleansing velocity of water flowing through pipe lines, is
21. Pick up the correct statement from the following :
22. The spacing of bars of perforations of fine screens used for the treatment of sewage, is
23. 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
24. Ventilating shafts are provided to a sewer line at every
25. The recommended detention period for grit chambers is
26. 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






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