Water Supply & Sanitation Chapter Wise McQ Test of 25 Question #11

1. Where the supply for private house connection the minimum residual pressure at any point on main is

2. The absolute minimum velocity in the pressure conduit of the distribution system is…….m/sec.

3. The range of velocity in a pipe flow is

4. The absolute minimum velocity for untreated water is …….m/sec.

5. The formula Hl=n²V²L/R^4/3 for the head loss in conduits is generally known as

6. The formula given by V =1/n R^2/3 s^1/2

7. If the diameter of pipe is taken less than the economical diameter of the pipe

8. Losses of energy at exist

9. Which of the following helps to find out the distance where energy of water comes to zero and extra energy is required like pump house.

10. The hydraulic grade line pipe of should always kept ……. m above the ground level.

11. Hydraulic grade line is the sum of

12. Pressure head is given by

13. The excess energy remaining in the system after desired flow has reached at the discharge point is known as

14. The pressure that indicates the amount of gravitational energy available that point is known as

15. The maximum pressure which is the pipe can withstand without any leakage during hydrostatic pressure test, is called

16. The water supply pipe line should be tested at a specified pressure for

17. Hydraulic test of water supply project consists ……. is done

18. Pipe for water supply are tested for

19. While backfilling in pipe line the soil is generally kept ……………. above the normal ground level.

20. Maximum water is wasted in

21. A water supply system is said to be continuous when it is supplied for

22. Mostly used water supply system in our context is

23. Loss and wastage of water is minimum in case of

24. If water is available any time at tap, then system of supply is

25. An advantage of intermittent system of water supply system