Plumber Red Seal · Question
A 'reduced pressure principle' backflow preventer is generally used for which hazard level?
Reduced pressure principle (RP) backflow preventers are typically specified for high hazard cross-connections where there is a risk of both back-siphonage and b
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Question: A 'reduced pressure principle' backflow preventer is generally used for which hazard level?
Answer options:
- Low hazard
- Moderate hazard ✅ High hazard
- Non-potable applications only
Correct answer: High hazard
Explanation: Reduced pressure principle (RP) backflow preventers are typically specified for high hazard cross-connections where there is a risk of both back-siphonage and back-pressure, and where the contaminant can be health-threatening.
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