Which list correctly names the three hazard levels for cross connections?

Which list correctly names the three hazard levels for cross connections?

• A. Insignificant, Minor, Major
• B. Low, Medium, High
• C. Mild, Moderate, Severe
• D. Light, Moderate, Critical

Answer: (C)

Cross-connection hazard levels are described to communicate how serious a backflow risk might be so that appropriate protection can be chosen. The three terms Mild, Moderate, and Severe provide a clear, increasing progression of health risk. Mild suggests low risk, moderate indicates a noticeable risk under certain conditions, and severe points to a high risk requiring strong protective measures. This simple three-step scale is standard in many plumbing and backflow control contexts, making it the best fit for naming hazard levels. Other term sets don’t fit as neatly. Insignificant, Minor, Major isn’t the usual progression used for backflow hazard in practice, and Low, Medium, High can feel less precise about health risk levels in this specific context. Light, Moderate, Critical also mixes common adjectives but isn’t the standard triad used in cross-connections. The Mild–Moderate–Severe sequence communicates a straightforward, clinically intuitive scale of risk that matches how inspections and protective requirements are typically guided.

Cross-connection hazard levels are described to communicate how serious a backflow risk might be so that appropriate protection can be chosen. The three terms Mild, Moderate, and Severe provide a clear, increasing progression of health risk. Mild suggests low risk, moderate indicates a noticeable risk under certain conditions, and severe points to a high risk requiring strong protective measures. This simple three-step scale is standard in many plumbing and backflow control contexts, making it the best fit for naming hazard levels.

Other term sets don’t fit as neatly. Insignificant, Minor, Major isn’t the usual progression used for backflow hazard in practice, and Low, Medium, High can feel less precise about health risk levels in this specific context. Light, Moderate, Critical also mixes common adjectives but isn’t the standard triad used in cross-connections. The Mild–Moderate–Severe sequence communicates a straightforward, clinically intuitive scale of risk that matches how inspections and protective requirements are typically guided.