Water Treatment Operator
Certification Study Guide (AWWA)
Exam Questions with Correct Verified
Solutions 100% Guaranteed Pass
1. (Pump efficiency) x (Motor efficiency) - ANS ✔Wire to water
efficiency
2. A continuously flowing watercourse - ANS ✔Perennial Stream
3. Algae causes PH to ....... at night - ANS ✔Decrease
4. Also called the rule of reasonable sharing - ANS ✔Riparian
Doctrine
5. Amount of water a well produces for each foot of drawdown -
ANS ✔Specific capacity
6. As water temp increases, disinfection action....... - ANS
✔Increases
7. Capability of water to resist change in PH is called - ANS
✔Buffering capacity
Water Treatment Operator Certification Study Guide (AWWA)
, 2
AWWA
8. Check valves prevent ........... - ANS ✔Water from flowing in two
directions
9. Chemical formula for bicarbonate - ANS ✔HCO-3
10. Coagulation occurs during the first ..... - ANS ✔1 to 5
seconds
11. Free chlorine residual includes - ANS ✔OCI- and HOCI
12. free chlorine residual valus are based on a contact time
of.... - ANS ✔10 minutes
13. Giardia cysts range in size from - ANS ✔8 to 20 microns
14. Grease lubricated bearings should be regreased at what
frequency? - ANS ✔3 - 6 Months
15. Highest concentration of hypochlorous acid occurs at what
PH? - ANS ✔5
16. How do you determine watts - ANS ✔(amps)x(volts)
17. How does alkalinity effect the use of copper sulfate - ANS
✔Copper sulfate is more effective as alkalinity decreases
18. How many log removal for viruses - ANS ✔4 log 99.99%
Water Treatment Operator Certification Study Guide (AWWA)
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