Illinois Plumbing Code Practice

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Prepare for the Illinois Plumbing Code Exam with our comprehensive quiz that includes flashcards and multiple-choice questions to bolster your understanding of plumbing standards and regulations. Gear up for your test!

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What does RPZ stand for in plumbing terminology?

Reversed Pipe Zone
Regulated Plumbing Zone
Reduced Pressure Zone
Remote Pipe Zoning

The correct answer is: Reduced Pressure Zone

The term RPZ in plumbing terminology stands for Reduced Pressure Zone. This designation refers to a specific type of backflow prevention device designed to protect potable water supplies from contamination due to backflow. A Reduced Pressure Zone assembly consists of two independent check valves and a pressure differential relief valve positioned between them. This configuration allows for the detection of any drop in pressure in the system and ensures that water does not flow backward into the drinking water supply, thus maintaining safe drinking water standards. Understanding the significance of RPZs is crucial for compliance with plumbing codes, as they play an essential role in preventing potential health hazards associated with backflow events.