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 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. The types of formwork provided for ferrocement tank in rural water supply schemes are a) steel b) wood c) HDP pipe d) all of the above 2 / 30 2. Total quantity of reservoir is the sum of the following a) breakdown reserve b) fire reserve c) all of the above d) balancing reserve 3 / 30 3. The maximum amount of copper in domestic water should be a) up to 3 ppm b) up to 15 ppm c) up to 45 ppm d) all of the above 4 / 30 4. The type of joint used in plastic pipe is a) butt welding b) solvent welding c) thread joint d) dresser coupling joint 5 / 30 5. The pipe used to carry discharge from sanitary fittings like bathrooms, kitchens, etc., is: a) waste pipe b) soil pipe c) vent pipe d) anti-siphonage pipe 6 / 30 6. As compared to cast iron pipes, steel pipes are a) stronger b) heavier c) costlier d) all of the above 7 / 30 7. A goose neck is: a) a bent flexible pipe between ferrule and stop cock b) a T-shaped brass between ferrule and water meter c) a straight G.I. pipe between the service pipe and stop cock d) a bent rigid pipe between the service pipe and water meter 8 / 30 8. In a circular sewer if depth of flow is 0.2 times the full depth, the nominal gradient: a) is only provided b) is doubled c) three d) none of the above 9 / 30 9. The gradient to be provided for sewers depends upon: a) the diameter of the sewer b) the discharge c) sewer pipe material d) all of the above 10 / 30 10. Which of the following impurities in water is removed by the sedimentation process? a) total dissolved solids b) bacteria c) iron and manganese d) suspended solids 11 / 30 11. The minimum water flow in a tap stand is: a) 0.25 lps b) 0.20 lps c) 0.15 lps d) 0.10 lps 12 / 30 12. The ratio of maximum hourly consumption and average hourly consumption of the maximum day is a) 1.2 b) 1.5 c) 1.8 d) 2.7 13 / 30 13. Decrease in per capita consumption occurs by a) use of a metering system b) hot climate c) good-quality water is supplied d) all of the above 14 / 30 14. The approximate diameter of a water mains for supplying 7.15 mld with 1.21 m/sec velocity flow will be a) 10 cm b) 20 cm c) 30 cm d) 50 cm 15 / 30 15. Sanitary sewage means: a) domestic sewage b) industrial sewage c) both (a) and (b) above d) none of the above 16 / 30 16. When the fall in elevation is greater than 60cm, the manhole provided is called: a) lamp hole b) flight manhole c) drop manhole d) fall manhole 17 / 30 17. A sanitary sewer is expected to run: a) full b) half-full c) 2/3 full d) 90% full 18 / 30 18. Sterilization is the process of a) killing of diseases bacteria b) produce of diseases of water c) no change diseases bacteria d) eliminating all life 19 / 30 19. In strainer type wells a) the flow is radial b) the flow is spherical c) area of flow depends upon the size of the cavity d) all of the above 20 / 30 20. The water which is not chemically pure but does not contain anything harmful to human health is known as a) pure water b) wholesome water c) polluted water d) none of the water 21 / 30 21. The water supply pipeline should be tested at a specified pressure for a) one hour b) two hours c) three hours d) four hours 22 / 30 22. Growth of the population can be conveniently represented by a) arithmetical curve b) geographical curve c) logistic curve d) straight line curve 23 / 30 23. Grit chamber has a detention period of: a) 45 sec to 90 sec b) 2 min to 5 min c) 20 min to 30 min d) 2 hours to 4 hours 24 / 30 24. 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 25 / 30 25. "Dental Caries" will be absent where the following is present a) mottled enamel of teeth b) itai-itai c) methemoglobinemia d) cancer 26 / 30 26. 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 27 / 30 27. In the one-pipe system of plumbing, the number of vertical pipes is: a) 1 b) 2 c) 3 d) 4 28 / 30 28. 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 29 / 30 29. The interference of the well depends upon a) the number of wells b) spacing between wells c) types of wells d) all of the above 30 / 30 30. Septic tank effluent is: a) quite clear and sparkling b) always odorless c) having fine organic solids with high BOD d) black tarry liquor with an earthy odor Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Share the above MCQs:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on X (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)
