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Backflow & Cross-ConnectionQuestion 3 / 10

Which term describes backflow caused by the downstream pressure exceeding the supply pressure?

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✓ Correct answer: C. Backpressure backflow Backpressure backflow occurs when downstream pressure becomes greater than the supply (system) pressure, forcing contaminants backward into the potable supply. This can happen in boiler systems, pumped systems, or elevated piping.

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Topic: Backflow & Cross-Connection
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