Water Supply Engineering Online Test – Multiple Choice Questions and Answers

1. The prescribed hardness limit of potable water ranges between

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Pick up the correct statement from the following :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Sluice valves are fitted in a distribution system

 
 
 
 

9. Mostly used coagulant, is

 
 
 
 

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

 
 
 
 

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