Civil Engineering - Waste Water Engineering Mock test - 2 - ENGINEERING BIX

Civil Engineering – Waste Water Engineering Mock test – 2

Welcome to your Waste Water Engineering Mock test -2
Take an exciting test in Waste Water Engineering 
You have only 20 mins to complete the test (31 Questions)
Wish you all the best!!!
1. For design purposes, the normal rate of infiltration of ground water into the sewer, is
2. The presence of free ammonia in sewage, is detected by
3. To prevent settling down of sewage both at the bottom and on the sides of a large sewer, self-cleaning velocity recommended for Indian conditions, is
4. For providing an Indian type W.C., the R.C.C. slabs in the toilet portion
5. In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is
6. The detention period for plain sedimentation water tanks, is usually
7. The drop man holes are generally provided in sewers for
8. The standard B.O.D. of water is taken for
9. Pick up the correct statement from the following :
10. The clarigesters are
11. Fresh sewage may become stale in
12. The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is
13. The effluent of a septic tank is
14. Maximum permissible velocity 1.5 m/sec, is adopted in drains
15. In sewage having fully oxidised organic matter, the nitrogen exists in the form of
16. The small sewers are cleaned by
17. A manhole is classified as shallow if its depth is between
18. Nitrogen cycle of sewage, is
19. The liquid wastes from kitchens, bath rooms and wash basins, is not called
20. In sewers the highest non-scouring velocity is achieved in
21. Rate of flow of sewage is generally assumed
22. If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is
23. The digested sludge from septic tanks, is removed after a maximum period of
24. A drop manhole is provided if
25. Pick up the correct statement from the following :
26. he most dangerous pollutant in vehicular emissions is
27. The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known
28. The effluent of a septic tank is
29. Dry water flow in a combined sewer, is
30. During preliminary treatment of a sewage
31. It is customary to design a sewer for D.W.F. on the basis of

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