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!

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Why is it important to maintain a horizontal weir in a clarifier?

to prevent short circuiting
to increase settling time
to reduce aeration
to improve skimming

The correct answer is: to prevent short circuiting

It is important to maintain a horizontal weir in a clarifier to prevent short circuiting. Short circuiting can occur when the water or wastewater does not flow evenly across the settling area, resulting in some particles settling too quickly while others are not given enough time to settle. This can lead to ineffective clarifier performance and poor water quality.