NM CID MM-1 Practice Questions - New Mexico CID MM-1 Plumbing Examination Exam

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A chemical-dispensing unit connected to the potable water supply presents a high-hazard cross-connection capable of backpressure. The UPC-required protection is:

A reduced-pressure principle assembly or an air gap An atmospheric vacuum breaker anywhere on the supply A dual check without test cocks A hose-bibb vacuum breaker on the chemical tank

Correct Answer:

A reduced-pressure principle assembly or an air gap

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