Water Distribution Grade 1 Certification ADEQ Practice Exam Questions with Correct Answers

Water Distribution Grade 1 Certification ADEQ Practice Exam Questions with Correct Answers What is the general definition of an ion? An _________ with a positive or negative charge - Correct Answer Atom A continuous positive pressure in a distribution system is essential for preventing what event? - Correct Answer 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. - Correct Answer Minimum Name the most common CAUSE for public water supply contamination. _________________ or cross-connection - Correct Answer Backflow What does a backsiphonage condition usually cause? __________ pressure or negative pressure on the service or supply side. - Correct Answer Reduced What does a double check valve backflow assembly provide effective protection from? Both backpressure and backsiphonage of ____________. - Correct Answer Pollution What is equipment that utilizes water for cooling, lubrication, washing or as a solvent always susceptible to? - Correct Answer Cross-Connection What is the difference between a reduced pressure principle backflow device and a double check backflow device? The RP has a ______________. - Correct Answer Relief Valve What is the maximum time period between having a backflow device tested by a certified backflow tester? ______________ year. - Correct Answer