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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What is the health effect of carbon dioxide?

could lead to asphyxiation
causes skin irritation
triggers allergic reactions
induces coughing

The correct answer is: could lead to asphyxiation

Carbon dioxide, when present in elevated concentrations, can displace oxygen in the air and lead to asphyxiation. This is particularly critical in enclosed or poorly ventilated spaces where oxygen levels may become dangerously low due to the accumulation of carbon dioxide. While carbon dioxide is a naturally occurring gas in the atmosphere, its increased levels can create hazardous conditions that affect breathing and overall respiratory function. The other choices—skin irritation, allergic reactions, and coughing—are not typically associated with carbon dioxide exposure. Skin irritation and allergic reactions are more relevant to other substances, often involving chemical irritants or allergens. Coughing may occur as a result of respiratory irritation, but it is not a primary health effect linked to carbon dioxide unless in extreme high concentrations that affect breathing mechanics.