NM CID GF-5 Practice Questions - New Mexico CID GF-5 Recreation Areas Contractor Examination Exam

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A park irrigation main is supplied from a public potable-water system and will have chemical fertilizer injection. Which backflow approach is the high-hazard choice?

No backflow preventer, because irrigation water only flows one way A hose-bibb vacuum breaker at the controller A reduced-pressure principle assembly (RP or RPZ) listed for high-hazard continuous pressure, installed with the required clearances and tested An atmospheric vacuum breaker installed below all downstream heads

Correct Answer:

A reduced-pressure principle assembly (RP or RPZ) listed for high-hazard continuous pressure, installed with the required clearances and tested

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