OK Plumber Practice Questions - Oklahoma Journeyman Plumber License Exam

In Oklahoma, what type of backflow preventer is required to protect the potable water supply from a high-hazard cross-connection?

Reduced pressure zone (RPZ) backflow preventer Atmospheric vacuum breaker (AVB) Dual check valve Hose bibb vacuum breaker

Reduced pressure zone (RPZ) backflow preventer

Access more questions from this quiz

Continue to OK Plumber Practice Questions - Oklahoma Journeyman Plumber License Exam for more practice questions and the full quiz experience.