Social Sciences > QUESTIONS & ANSWERS > Water Distribution Grade 1 Certification ADEQ Practice Exam Already Passed (All)
Water Distribution Grade 1 Certification ADEQ Practice Exam Already Passed What is the general definition of an ion? An _________ with a positive or negative charge ✔✔Atom A continuous positiv... e pressure in a distribution system is essential for preventing what event? ✔✔Backflow Event _____________ water pressure must be maintained to ensure adequate customer service during peak flow periods. However, minimum positive pressure must be maintained in mains to protect against backflow or backsiphonage from cross-connections. ✔✔Minimum Name the most common CAUSE for public water supply contamination. _________________ or cross-connection ✔✔Backflow What does a backsiphonage condition usually cause? __________ pressure or negative pressure on the service or supply side. ✔✔Reduced What does a double check valve backflow assembly provide effective protection from? Both backpressure and backsiphonage of ____________. ✔✔Pollution What is equipment that utilizes water for cooling, lubrication, washing or as a solvent always susceptible to? ✔✔Cross-Connection What is the difference between a reduced pressure principle backflow device and a double check backflow device? The RP has a ______________. ✔✔Relief Valve What is the maximum time period between having a backflow device tested by a certified backflow tester? ______________ year. ✔✔1 What is the regulatory definition of a cross-connection in a water supply? A physical connection between a public water system and any source of water or other substance that may lead to contamination of the water provided by the _____________ through backflow. ✔✔PWS What is the name of a type of valve that reduces the differential pressure across a closed disk making the main valve easier to open and close? ✔✔Bypass Valve [Show More]
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Water Distribution Bundled Exams Questions and Answers with Verified Solutions
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