Activated sludge exam Study guides, Class notes & Summaries
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Texas Wastewater Class B Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct | Grade A
- Exam (elaborations) • 39 pages • 2023
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Texas Wastewater Class B Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct | Grade A 
 
Q: Ways to reduce bad odors coming from a collection system 
 
 
Answer: 
routinely cleaning slow running or low flow lines, adding chlorine or hydrogen peroxide to the collection system 
 
 
 
Q: Types of pipe that are commonly used in wastewater collection system 
 
 
Answer: 
ductile iron, Poly Vinyl Chloride (PVC) 
 
 
 
Q: Before entering a confined space a worker should 
 
 
A...
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Waste Water Operator Level 1 Exam Prep 2024/2025
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Waste Water Operator Level 1 Exam 
Prep 2024/2025 
In the activated sludge process, some of the activated sludge must be wasted to... 
A. Prevent excessive solid buildup 
B. Prevent clogging of the sludge return line 
C. Prevent overloading of sludge return pumps 
D. Increase digester gas production - CORRECT ANSWER-A. Prevent excessive solid 
buildup 
The best operating strategy for feeding primary sludge to an anaerobic digester is to 
feed... 
A. Several time a day 
B. Large quantities onc...
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Wastewater Exam Class C Questions and Answers (SCORED A)
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Wastewater Exam Class C QuestioThe Activated Sludge Process: 
 
A. requires preaeration 
B. requires Activated Carbon 
C. is an aerobic biological process. 
D. Usually precedes primary sedimentation. 
E. Requires 50% by volume old sludge to work effectively. -ANSWER C. Is an Aerobic biological process 
 
A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to : 
 
A. Increase the RAS Flow 
B. Reduc...
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Class C Wastewater Exam Questions and Answers Latest 2024/2025 (Graded A+)
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Class C Wastewater Exam Questions and Answers Latest 2024/2025 (Graded A+) A complete mix activated sludge plant has a fast settling sludge and high amounts of 
pin floc leaving the clarifier. One way to correct this problem is to : 
A. Increase the RAS Flow 
B. Reduce Wasting Rates 
C. Increase dissolved oxygen levels. 
D. Increase the F/M ratio by wasting more 
E. Increase the sludge age by wasting less. - ANSWER-D. Increase the F/M Ratio by 
Wasting More 
Which of the following flow rates sho...
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Treatment 2 Wastewater Operator certification Study Guide Exam GradedA
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Treatment 2 Wastewater Operator certification Study Guide Exam GradedA 
General Wastewater Treatment: 
 
What is the pressure head caused by? 
Water elevation 
 
 
General Wastewater Treatment: 
 
What color should the piping be that contains reclaimed water? 
purple 
 
 
General Wastewater Treatment: 
 
What is the term for the height to which a column of water will rise in a well. 
piezometric surface 
 
 
General Wastewater Treatment: 
 
In general, what is the maximum practical lift of pumps...
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Wastewater Exam Class C Exam Questions And Answers
- Exam (elaborations) • 10 pages • 2024
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Wastewater Exam Class C Exam Questions And Answers 
 
The Activated Sludge Process: 
 
A. requires pre aeration 
B. requires Activated Carbon 
C. is an aerobic biological process. 
D. Usually precedes primary sedimentation. 
E. Requires 50% by volume old sludge to work effectively. - ANS C. Is an Aerobic biological process 
 
A complete mix activated sludge plant has a fast settling sludge and high amounts of pin floc leaving the clarifier. One way to correct this problem is to : 
 
A. Incre...
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Operation of Wastewater Treatment prep complete exam questions and verified answers 2024/2025
- Exam (elaborations) • 19 pages • 2024
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Operation of Wastewater Treatment prep complete exam questions and verified answers 2024/2025 
An Imhoff cone is used to measure________solids. 
A. suspended 
B. colloidal 
C. volatile 
D. settleable 
D. settleable 
 
(Operation of Wastewater Treatment Plants, Volume 1 
by Kenneth D. Kerri) 
 
 
A _____ flume is widely used for measuring wastewater flow. 
Parshall 
 
(Operation of Wastewater Treatment Plants, Volume 1 
by Kenneth D. Kerri) 
 
 
Velocity of flow in a grit channel must be reduced ...
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Class C Waste water Exam A-graded Final Certification Exam
- Exam (elaborations) • 9 pages • 2024
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Class C Waste water Exam A-graded 
Final Certification Exam 
The Activated Sludge Process: 
A. requires preaeration 
B. requires Activated Carbon 
C. is an aerobic biological process. 
D. Usually precedes primary sedimentation. 
E. Requires 50% by volume old sludge to work effectively. - CORRECT ANSWER-C. Is 
an Aerobic biological process 
A complete mix activated sludge plant has a fast settling sludge and high amounts of 
pin floc leaving the clarifier. One way to correct this problem is to...
-
Waste Water Operator Lv 1 Exam Prep Latest Update (rated A)
- Exam (elaborations) • 8 pages • 2024
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Waste Water Operator Lv 1 Exam PrIn the activated sludge process, some of the activated sludge must be wasted to... 
 
A. Prevent excessive solid buildup 
B. Prevent clogging of the sludge return line 
C. Prevent overloading of sludge return pumps 
D. Increase digester gas production -ANSWER A. Prevent excessive solid buildup 
 
The best operating strategy for feeding primary sludge to an anaerobic digester is to feed... 
 
A. Several time a day 
B. Large quantities once or twice a day 
C. Once ...
-
Class C Wastewater Exam Questions and Answers 2024/2025 (Graded A+)
- Exam (elaborations) • 10 pages • 2024
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- $12.99
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Class C Wastewater Exam Questions and Answers 2024/2025 (Graded A+) The Activated Sludge Process: 
A. requires preaeration 
B. requires Activated Carbon 
C. is an aerobic biological process. 
D. Usually precedes primary sedimentation. 
E. Requires 50% by volume old sludge to work effectively. - ANSWER-C. Is an Aerobic 
biological process 
A complete mix activated sludge plant has a fast settling sludge and high amounts of 
pin floc leaving the clarifier. One way to correct this problem is to : 
...
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