Engineering > QUESTIONS & ANSWERS > Backflow Tester Exam Questions and Answers Graded A+ (All)

Backflow Tester Exam Questions and Answers Graded A+

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Backflow Tester Exam Questions and Answers Graded A+ A double check valve assembly is installed 12 above the floor for? ✔✔Maintenance A low hazard Backflow preventer is a? ✔✔Double Check valve assembly A field test report for a double check will include the manufacturer name, model, size and ?? ✔✔Serial number Double check valve assembly components are?? ✔✔Independently acting A double check valve assembly hydraulic use is?? ✔✔Continuous A detector assembly contains a device of equal? ✔✔Protection Each check valve of a double check valve assembly is forced to load to what psi? ✔✔1.0 A double check valve assembly is required to contain test cocks that total? ✔✔4 A double check valve assembly is designed to detect low flow rates up to what gpm ✔✔1 A double check detector assembly is referenced as a? ✔✔DCDA A double check valve assembly installed in a vertical flow down orientation is only allowed? ✔✔If approved for that orientation The max height the water will rise in a barometric loop is dependent of? ✔✔Atmospheric pressure The number 1 check spring on a RP has a minimum spring tension requirement of? ✔✔5 psi Relief valves are designed to open to atmosphere when supply pressure becomes less than? ✔✔2 psi A RP has an inlet supply pressure of 97psi. The pressure in the zone will be at least? ✔✔92 psi The purpose of an RP is to? ✔✔Prevent contamination from entering the water supply The application of an RP is? ✔✔Any hazard application The max level of protection provided by a RP is? ✔✔Health hazard A RP zone pressure should be ✔✔5 psi - less than supply A RP fouled check valve number 1 may be indicated by ✔✔Continuous dripping With both shut off valves closed and test cocks 3-4 open, a continuous discharge from test cock 4 might indicate a leak through ✔✔Shut off valve number 2 Lock out tag out must be used ✔✔All the above An RP relief valve is loaded to ✔✔Push the valve away from its seat The purpose of RP check valve number 1 loading is ✔✔Create a reduction in water pressure Intermittent relief valve discharge from a RP is probably caused by ✔✔Water hammer Back pressure to a RP fouled check valve number 2 likely ✔✔Forced the relief valve to open and discharge An air gap separation must be maintained at a RP,s ✔✔Relief valve discharge An RP's "Buffer" can be described as ✔✔Difference b

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