AZ ROC R-37 Plumbing & Solar Practice Questions - Arizona ROC R-37 Plumbing Including Solar (Residential) Examination Exam

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Which backflow prevention assembly is required for high-hazard cross-connections subject to continuous backpressure or backsiphonage, and requires an air gap drain discharge line that must never be submerged?

Double Check Valve Assembly (DCVA) Pressure Vacuum Breaker (PVB) Reduced Pressure Principle Backflow Preventer (RPZ) Atmospheric Vacuum Breaker (AVB)

Correct Answer:

Reduced Pressure Principle Backflow Preventer (RPZ)

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