California Wastewater Treatment Operator Practice Exam

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Study for the California Wastewater Treatment Operator Exam. Use flashcards and multiple-choice questions with detailed explanations to boost your readiness. Prepare with confidence and aim for success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


How often should the sludge at the bottom of the clarifier be pumped?

  1. once a week

  2. twice a day

  3. once a day

  4. frequently throughout the day

The correct answer is: frequently throughout the day

The correct answer is D, frequently throughout the day. In a wastewater treatment plant, the sludge at the bottom of the clarifier should be continuously or frequently pumped out to prevent it from building up and affecting the efficiency of the treatment process. Allowing sludge to accumulate for too long can lead to operational issues and impact the overall treatment performance. It is important to maintain a regular schedule of removing sludge to ensure the proper functioning of the clarifier and the treatment plant as a whole. Options A, B, and C are not ideal because the frequency suggested in these options may not be sufficient to prevent the buildup of sludge, which can potentially lead to operational problems and impact the treatment process.