Waste water Engineering Mock test - 4 || Civil Engineering Mock tests - ENGINEERING BIX

Waste water Engineering Mock test – 4 || Civil Engineering Mock tests




Welcome to your Waste water Engineering Mock test - 4
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. The small sewers are cleaned by
2. In sewage, the solids in mg per litre is
3. The ratio of minimum hourly flow to the average flow of sewage is
4. The standard B.O.D. of water is taken for
5. In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is
6. hydraulically equivalent, the relationship which holds good, is
7. Rate of flow of sewage is generally assumed
8. Fresh sewage may become stale in
9. House connections to the laterals is generally made by
10. The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of  0.2 m/sec. If the ratio of width to depth is 2, the depth is
11. The sewer which transports the sewage to the point of treatment, is called
12. In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of  concrete is kept
13. In olden days the type of section adopted in trunk and out fall sewers was
14. The coagulant widely used for sewage treatment, is
15. Sewer pipes need be checked for
16. Aerobic activity is maximum
17. If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is
18. In septic tanks, decomposition of organic bacteria, is done by
19. In 1000 kg of sewage, the total solids approximate
20. Removal of oil and grease from sewage, is known
21. To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of
22. If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains
23. For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed
24. The sewerage system originates from
25. Drop manholes at the junctions of sewer lines, are provided if







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