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Backflow Prevention Practice Exam With Answers (100 Solved Questions)

Study smarter with Backflow Prevention Practice Exam With Answers, a collection of past exams that highlight important concepts and question types.

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BACKFLOW PREVENTION ASSEMBLY TESTER PRACTICE EXAM QUESTIONS ANDACCURATE ASNWERS//GRADED A+In responding to a backflow incident the water purveyor should(A) Call the mayor(B) Implement the emergency response plan(C) Install a vacuum breaker(D) Develop a good excuse-answer-Implement the emergency response planA mixture of air and gas is considered hazardous when the mixture exceeds what percentage of gthelower explosive limit(A) 0%(B) 3%(C) 7%(D) 10%-answer-10%To exert a pressure of 1.0 psi at base of a water column the column would have to be(A)4.34 high(B) 14.7 high(C) 27.75 high(D) 33.89 high-answer-27.75 highA DC must be tested(A) Upon installation(B) Every 6 month(C) Annually on a health hazard(D) none of the above-answer-Upon installationAn absolute perssure of 25 psiaa (atsea level) is equal to approximately(A) 5 psi

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