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1. Typically water system customers judge the quality of the water by?
   
   a. Color b. Taste c. Asthetics d. All of the above
    

2. If the water tastes changes the customer often will call the supplier and complain that the water is?
   
   a. Not worth paying for this month b. Contaminated c. Not good enough for minnows d. Making him sick
    

3. Most taste and odors in surface water are derived from algae blooms and are?
   
   a. Organic b. Inorganic
    

4. Algae are simple forms of plant life that exist in relatively clean water, algae are widely distributed in nature are usually present in lakes, ponds and stream.  The most common types that cause taste and odors are?
   
   a. Cyanophyceae b. Chlorophyceae c. Diatomaceae d. All of the above
    

5. Water that has a rotten egg smell usually has a high amount of?
   
   a. Sulfur b. Hydrogen Sulfide c. Iron and Magnus d. Magnesium
    

6. The most common treatment for water that has this rotten egg smell is?
   
   a. Aeration b. Lime c. Alm d. Filtration
    

7. When dissolved in water, methane gas from decomposition of organic matter tastes like?
   
   a. Cinnamon b. Licorice c Garlic d. Rotten Egg
    

8. What gas or chemical can be removed by aeration?  Realizing that explosiveness is the largest danger.
   
   a. Iron b. Magnesium c. Chlorine d. Methane
    

9. One of the most common methods for measuring the odor in water is?
   
   a. Boiling it b. Atomic Absorption c. Threshold odor test d. Chlorine test
    

10. What involves the prevention of contaminants from entering the groundwater source? 
    
    a. Fencing b. Well head protection c. Gates d. Aqua defender
     

11. If preventative measures used on the water sources are ineffective, the taste and odor must be controlled where?
    
    a. Underground b. Treatment plant c. Reservoir d. Recirculation in the reservoir
     

12. The following are examples of an aeration treatment process.
    
    a. Diffused b. Spraying cascade trays c. Mechanical d. Tower type e. All of the above
     

13. Hydrogen Sulfide in water is a common problem and a common method of  removing it from water is?
    
    a. Filtration b. Lime c. Settling d. Aeration
     

14. What occurring in the distribution system is primarily the result of corrosion of  pipe material and or growth of iron bacteria?
    
    a. Taste and odor b. Main breaks c. Maintain pressure d. Old water mains
     

15. Problems in the distribution system can be eliminated by adequate means of doing what to the system?
    
    a. Keeping the tower full b. Flushing c. Maintain pressure d. Valve exercise program
     

16. Water Treatment plants can also minimize taste and odor problems by maintaining an adequate?
    
    a. Chlorine residual b. Recirculation rates c. Positive pressure d. Pump maintenance program
    
     

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