California Wastewater Treatment Operator Grade V exam COMPLETE VERIFIED QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE THIS YEAR||NEWEST EXAM!!!

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California Wastewater Treatment Operator Grade V
exam COMPLETE VERIFIED QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR||NEWEST EXAM!!!


The nitrogen : phosphorous : BOD required is


A. 1:5:100
B. 100:5:1
C. 1:5:100
D. 5:1:100
E. 3:5:10 - Answer-D. 5:1:100


The F to M ratio for a conventional activated sludge plant
is typically...


A. 0.1 to 0.5
B. 0.01 to 0.005
C. 1 to 5
D. 0.5 to 1
E. 3 to 5 - Answer-A. 0.1 to 0.5

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Denitrification is the conversion of


A. Nitrogen to nitrate
B. Nitrate to nitrite to nitrogen gas
C. Nitrogen to nitrite
D. Ammonia to nitrite
E. Nitrogen to nitrogen gas - Answer-B. Nitrate to nitrite to
nitrogen gas


During gas generation, the PH of the digester will typically
be


A. 6.0-7.0
B. 6.5- 7.5
C. 7.0-7.2
D. 7.0- 8.0
E. 8.0-9.0 - Answer-C. 7.0-7.2


In a nitrification-denitrification process, what is the primary
purpose of an anoxic zone?

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A. Promote phosphorus uptake
B. Promote ammonia oxidation
C. Facilitate nitrate reduction to nitrogen gas
D. Increase DO levels - Answer-C. Facilitate nitrate
reduction to nitrogen gas


A filamentous bulking issue is observed in the secondary
clarifier. What is the best immediate operational
adjustment?
A. Increase RAS rate
B. Decrease sludge age (MCRT)
C. Raise DO in the aeration tank
D. Add more primary sludge - Answer-C. Raise DO in the
aeration tank


What is the main purpose of step feed in an activated
sludge process?
A. Reduce aeration energy cost
B. Improve BOD removal at high loading rates
C. Control filamentous growth
D. Increase sludge age - Answer-Answer: B