49 Water Supply & Sanitation Chapter Wise McQ Test of 25 Question #10 Water Supply & Sanitation Chapter Wise McQ Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. The valve provided at low points of pipe to drain off water quickly under gravity is A. Drain valve B. Blow of valve C. Sewer valve D. All of the above 2 / 25 2. Pressure relief valve is provided in water main A. To reduce the pressure B. Upstream of sluice C. At low points D. All of the above 3 / 25 3. Sluice valves in main water supplies are A. Used to regulate the flow B. Spaced about 5km apart C. Generally provided at the summit D. all of the above 4 / 25 4. The valve provided on the suction pipe in a tube well is A. Reflux valve B. Butterfly valve C. Float valve D. Poppet valve 5 / 25 5. The valves which allow water to flow in one direction but prevent its flow in their reverse direction. A. Reflux valve B. Butterfly valve C. Float valve D. Poppet valve 6 / 25 6. The valve which have a unidirectional flow A. Reflux valve B. Check valve C. Both a and b D. None of the above 7 / 25 7. Scour valves are provided A. At every summit of rising B. At every depression and dead end to drain out the waste water that may collected there C. At street corners to corners to control the flow of water D. All of the above 8 / 25 8. Poppet valve is type of valve A. Air valve B. Blow of valve C. Sluice valve D. All of the above 9 / 25 9. Impetus valve/waste valve is provided in A. Hydraulic ram B. Centrifugal pump C. Rotary pump D. All of the above 10 / 25 10. Pressure relief valve is provided to prevent A. The increase of pressure after certain limit B. Back flow when the pump is stopped C. The water flowing out of the suction pipe D. None of the above 11 / 25 11. The valve provided after the pump in the rising mains to prevent the back flow of water when the pump is stopped is A. Butterfly valve B. Reflux valve C. Float valve D. Poppet valve 12 / 25 12. The valve which is used to prevent spell of water from overhead tank is A. Butterfly valve B. Reflux valve C. Float valve D. Poppet valve 13 / 25 13. Summits are the points of …… A. High pressures B. Low pressures C. Equal pressures D. None of these 14 / 25 14. The valve which operates automatically when the pressure in the pipe exceeds the design pressure is ….. A. Reflux B. Pressure relief C. Sluice D. Air 15 / 25 15. Reflux valve is also known as ……… valve A. Gate B. Scour C. Check D. Safety 16 / 25 16. The valve generally used to washout sediments from a tank is …….. valve. A. Gate B. Scour C. Check D. Safety 17 / 25 17. The safe yield of sources of water should not be less than……. A. 0.1lps B. 0.2lps C. 0.3lps D. 0.15lps 18 / 25 18. Which of the following survey is done for profile levelling of pipe line is? A. Auto level B. Abney level C. Fly level D. Differential level 19 / 25 19. The water discharge measurement at source in rural gravity water supply project is normally done by A. Bucket and stopwatch method B. Float method C. Notch and weir method D. Current meter method 20 / 25 20. The distribution mains in water supply system are designed for A. Maximum daily demand B. Peak hourly demand C. Average daily demand D. Maximum hourly demand on maximum consumption day 21 / 25 21. The distribution mains in a water supply scheme are designed for …… demand A. Average daily B. Maximum hourly C. Coincidental D. Fire 22 / 25 22. The transmission mains in a water supply scheme are designed for ……. Demand. A. Average daily B. Maximum daily C. Coincidental D. Fire 23 / 25 23. Water consumption pattern depends upon A. Geographic location B. People’s habits C. Climate condition D. All of the above 24 / 25 24. The water consumption in one day from 5-7AM is ……… of total water consumption as per DWSS guidelines. A. 25 B. 35 C. 20 D. 15 25 / 25 25. The absolute minimum pressure at CC/IC/RVT is A. 5m B. 10m C. 15m D. 20m Your score is The average score is 50% 0% Restart quiz Exit civil engineernecpscupscWater Supply & Sanitation
