Water Supply Engineering Online Test – Multiple Choice Questions and Answers

1. The detention period for plain sedimentation water tanks, is usually

2. One degree of hardness of water means a content of salts of

3. Pick up the correct statement from the following :

4. Mostly used coagulant, is

5. The best process of disinfection of public water supply, is by

6. The prescribed hardness limit of potable water ranges between

7. The cast iron pipes for water supply system are used for

8. Sluice valves are fitted in a distribution system

9. A water channel supported above the ground over trestles, is generally called

10. Rapid gravity filter can only remove turbidity of water upto