Plumber Red Seal · Question
A plumber is tasked with installing a backflow prevention device on a cross-connection to a chemical feed line in an industrial plant. What is the primary purpose of installing such a device?
The fundamental purpose of backflow prevention devices is to protect the potable water supply from contamination by preventing the reverse flow of non-potable l
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Question: A plumber is tasked with installing a backflow prevention device on a cross-connection to a chemical feed line in an industrial plant. What is the primary purpose of installing such a device?
Answer options:
- To regulate water pressure to the chemical line. ✅ To prevent potable water from mixing with non-potable substances.
- To filter out particulate matter from the water supply.
- To measure the flow rate of the chemical solution.
Correct answer: To prevent potable water from mixing with non-potable substances.
Explanation: The fundamental purpose of backflow prevention devices is to protect the potable water supply from contamination by preventing the reverse flow of non-potable liquids, gases, or solids into the drinking water system. Options A, C, and D describe other plumbing functions, not the primary role of backflow prevention.
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