Home» Online Test » Civil Engineering » Water Supply & Sanitation Engineering Online Test » Paper 1 » Paper 2 » Paper 3 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This is a FREE online test. Beware of scammers who ask for money to attend this test. Get fresh, new questions in each attempt. Total Questions: 30 Time Allotted: 30 minutes Passing Score: 50% Randomization: Yes Certificate: No Do not refresh the page! 👍 All the best! 1 / 30 1. As compared to cast iron pipes, steel pipes are a) stronger b) heavier c) costlier d) all of the above 2 / 30 2. Lead in water causes a) plumbo solvency b) stains on clothes and paper c) damages water systems d) permanent bluish skin 3 / 30 3. The sewer pipes: a) carry sewage as gravity conduits b) should resist the wear and tear caused due to abrasion c) are designed for generating self-cleaning velocities at different discharge d) all of the above 4 / 30 4. Two sewer sections laid at the same grade will be hydraulically equivalent if: a) their discharge capacity when running full is equal b) their flow velocity when running full is equal c) their flowing areas when running full are equal d) all the above factors are equal 5 / 30 5. If D is the diameter of the upper circular portion, the overall depth of a standard egg-shaped section, is: a) D b) 1.2D c) 1.5D d) 2D 6 / 30 6. Growth of the population can be conveniently represented by a) arithmetical curve b) geographical curve c) logistic curve d) straight line curve 7 / 30 7. The per capita consumption of a locality is affected by a) climatic condition b) quality of water c) distribution pressure d) all of the above 8 / 30 8. To determine the velocity of the flow of underground water, the most commonly used non-empirical formula is....formula: a) Darcy's b) Slitcher's c) Hazen's d) Lacy's 9 / 30 9. Gravity water supply system starts from a) intake b) collection chamber c) BPT d) faucet 10 / 30 10. Presence of algae in water indicates that the water is a) hard b) soft c) acidic d) pure 11 / 30 11. "Puits developee" is generally provided in case of a) well b) tube well c) reservoir d) none of the above 12 / 30 12. Iron and manganese are estimated by a) jar test b) winkler test c) calorimetric test d) none of the above 13 / 30 13. The standard BOD at 20°C is taken for the consumption in: a) 20 days b) 15 days c) 10 days d) 5 days 14 / 30 14. A manhole is generally provided at each: a) bend b) junction c) change of gradient d) change of sewer diameter 15 / 30 15. Inspection arm is provided in: a) manhole b) drop manhole c) lamp hole d) clean out 16 / 30 16. Turbidity is measured by the a) concentration of suspended solids collected after centrifuging b) concentration of colloidal and suspended solids after sedimentation c) intensity of light scattered when light is passed through d) difference in suspended solid concentration before and after filtration 17 / 30 17. The highest non-scouring velocity in a sewer may be allowed in: a) cast iron sewer b) glazed brick sewer c) cement concrete d) stone ware sewer 18 / 30 18. Break pressure tank in a water supply system is incorporated to: a) Store water under pressure b) Treat water by adequate pressure c) Release the pressure generated in the pipe d) Break the pressure 19 / 30 19. To determine the velocity of flow of underground water, the most commonly used non-empirical formula is a) Darcy's formula b) Slitcher's formula c) Hazen's formula d) Lacy's formula 20 / 30 20. R.M.O. means a) running b) maintenance c) operation d) all of the above 21 / 30 21. Turbidity of water sample depends on a) concentration and density of suspended and colloidal solids b) concentration of suspended, colloidal, and dissolved solids c) concentration of organic and inorganic matter d) concentration, size, shape, and refractive index of suspended solids 22 / 30 22. Salvaging is: a) extraction of essence from waste b) dumping of solid waste c) sanitary land filling of solid waste d) none of the above 23 / 30 23. The inlet and outlet pipes of the septic tank are bent: a) upward b) downward c) inlet upward and outlet downward d) inlet downward and outlet upward 24 / 30 24. Pressure relief valve is provided to prevent a) the increase of pressure after a certain limit b) back flow when the pump is stopped c) the water flowing out of the suction pipe d) none of the above 25 / 30 25. Incrustation of well pipes can be reduced by: a) using a screen having a larger area of opening b) using acid-resistant material screen c) removing the incrusted deposit d) reducing the pumping rate 26 / 30 26. Abyssinian tube well is a special type of a) strainer type tube well b) cavity type tube well c) slotted type tube well d) perforated type tube well 27 / 30 27. The asbestos cement pipes are generally laid a) horizontally b) vertically c) in any position d) inclined at 60° 28 / 30 28. The gradient of a sewer is: a) given in the direction of the natural slope of the ground b) given in the opposite direction of the natural slope of the ground c) zero d) more than 1 in 20 29 / 30 29. PH value is a symbol for....material: a) hydrogen b) magnesium c) calcium d) sodium 30 / 30 30. The best sewer material to resist hydrogen sulfide corrosion is: a) RCC b) brick masonry c) glazed stoneware d) asbestos cement Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Water Supply & Sanitation Engineering MCQ PDF for Offline Study
