Backflow Prevention Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the purpose of the first check valve in a reduced pressure principle assembly?

To allow for continuous flow

To prevent backflow into the potable water supply

The purpose of the first check valve in a reduced pressure principle assembly is to prevent backflow into the potable water supply. This valve is crucial because it acts as the first line of defense against any reversal of flow that might occur due to changes in pressure within the system. If backflow were to happen, it could introduce contaminants from non-potable sources back into the clean water supply, posing serious health risks. The first check valve effectively ensures that water flows only in the intended direction, thereby maintaining the integrity and safety of the drinking water supply and adhering to important health and safety regulations.

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To relieve pressure buildup

To act as a pressure gauge

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