Water Distribution System 7th Edition
Study online at https://quizlet.com/_6i4bs3
1. Over pumping and depleting the aquifer: Intrusion of seawater into groundwa-
ter basins result from?
2. What is stratification in lakes and reservoirs?: Formation of separate layers
of temperature, plant life, or animal life
3. What causes the elevation and slope of water tables and artesian pressure
levels to change?: Seasonal variations in the supply of water
4. How extensive should the treatment be for reclaimed water?: Depends on
potential exposure to the public
5. The water distribution system must have sufficient capacity to meet 3
qualifying factors throughout the system.: Max water demand plus firefighting
requirements and maintain adequate pressure
6. What is one difference between primary and secondary drinking water regu-
lations?: Primary regulations are mandatory limits while secondary regulations are
guidelines
7. Palatable water: Water at a desirable temperature that is free from objectionable
tastes, odors, colors, and turbidity
8. Contamination: One factor that may cause water quality degradation
9. Groundwater takes longer to recover after contamination due to?: Slow
water movement
10. Two causes of backflow though a cross-connection?: Back pressure and
backsiphonage
11. Chloramines: Form of chlorine most effective against biofilms
12. Careless operating procedures: Improperly constructed or poorly located blow
offs or air release and vacuum relief valves
13. Integrity of the coating: Influences the potential for corrosion in metal or
asbestos pipe that is lined with asphalt or coal tar
14. At least twice a month: Reservoirs should be inspected
15. Why are uncovered reservoirs often prohibited?: Subject to contamination
from many sources
16. What is an important aspect of a tank inspection and maintenance pro-
gram?: Ensuring adequate turnover of water in the tank
17. Why should an O&M program include exercising the valve?: To ensure
proper setting and operation
18. What is the responsibility of water treatment plant operators?: Produce safe
and pleasant drinking water
19. Operator certificate: Most states require someone to have to work as a water
treatment plant operator
20. Careless and negligence: Contributes to most treatment plant accidents
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Study online at https://quizlet.com/_6i4bs3
1. Over pumping and depleting the aquifer: Intrusion of seawater into groundwa-
ter basins result from?
2. What is stratification in lakes and reservoirs?: Formation of separate layers
of temperature, plant life, or animal life
3. What causes the elevation and slope of water tables and artesian pressure
levels to change?: Seasonal variations in the supply of water
4. How extensive should the treatment be for reclaimed water?: Depends on
potential exposure to the public
5. The water distribution system must have sufficient capacity to meet 3
qualifying factors throughout the system.: Max water demand plus firefighting
requirements and maintain adequate pressure
6. What is one difference between primary and secondary drinking water regu-
lations?: Primary regulations are mandatory limits while secondary regulations are
guidelines
7. Palatable water: Water at a desirable temperature that is free from objectionable
tastes, odors, colors, and turbidity
8. Contamination: One factor that may cause water quality degradation
9. Groundwater takes longer to recover after contamination due to?: Slow
water movement
10. Two causes of backflow though a cross-connection?: Back pressure and
backsiphonage
11. Chloramines: Form of chlorine most effective against biofilms
12. Careless operating procedures: Improperly constructed or poorly located blow
offs or air release and vacuum relief valves
13. Integrity of the coating: Influences the potential for corrosion in metal or
asbestos pipe that is lined with asphalt or coal tar
14. At least twice a month: Reservoirs should be inspected
15. Why are uncovered reservoirs often prohibited?: Subject to contamination
from many sources
16. What is an important aspect of a tank inspection and maintenance pro-
gram?: Ensuring adequate turnover of water in the tank
17. Why should an O&M program include exercising the valve?: To ensure
proper setting and operation
18. What is the responsibility of water treatment plant operators?: Produce safe
and pleasant drinking water
19. Operator certificate: Most states require someone to have to work as a water
treatment plant operator
20. Careless and negligence: Contributes to most treatment plant accidents
1/2
