Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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Prepare for the Texas Commission on Environmental Quality (TCEQ) Class C Water License Exam. Utilize flashcards, multiple choice questions, and in-depth explanations. Equip yourself with the skills to succeed!

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Which statement best describes a cross connection?

Protective measure for water systems
Connection between two potable sources
Link between drinking water and potentially unsafe water
Connection for water distribution

The correct answer is: Link between drinking water and potentially unsafe water

A cross connection is best described as a link between drinking water and potentially unsafe water. This definition is crucial in the context of water safety and plumbing systems. Cross connections can occur when there is a physical connection between a potable water supply and a source of contamination, which could lead to backflow. Backflow is the undesired reversal of flow in a water system, posing serious health risks as it can introduce harmful pollutants or pathogens into the drinking water supply. Understanding cross connections is vital for preventing contamination of potable water systems. It is important to implement protective measures, such as backflow prevention devices, to safeguard against these risks. This definition emphasizes the potential dangers associated with inadequate plumbing systems and highlights the importance of maintaining separation between safe and unsafe water sources to ensure public health.