WATER SUPPLY CHAPTER 6 TEST QUESTIONS WITH
100% CORRECT ANSWERS
1) An atmospheric vacuum breaker must be installed with the critical level a minimum
of ___" above the overflow rim of a fixture or above all downstream piping. --
Answer ✔✔ 6
2) Backflow prevention assemblies must be tested at least ___. -- Answer ✔✔
annually
3) A reduced-pressure (RP) backflow prevention assembly consists of ___
independently acting internally spring-loaded check valves. -- Answer ✔✔ two
4) ___ treatment is the final level of wastewater treatment, which improves effluent
quality before water is reused, recycled, or discharged to the environment. --
Answer ✔✔ Tertiary
5) A water hammer arrester is a device that contains a permanently sealed cushion of
gas or air designed to provide protection against excessive ___. -- Answer ✔✔
shock pressure
100% CORRECT ANSWERS
1) An atmospheric vacuum breaker must be installed with the critical level a minimum
of ___" above the overflow rim of a fixture or above all downstream piping. --
Answer ✔✔ 6
2) Backflow prevention assemblies must be tested at least ___. -- Answer ✔✔
annually
3) A reduced-pressure (RP) backflow prevention assembly consists of ___
independently acting internally spring-loaded check valves. -- Answer ✔✔ two
4) ___ treatment is the final level of wastewater treatment, which improves effluent
quality before water is reused, recycled, or discharged to the environment. --
Answer ✔✔ Tertiary
5) A water hammer arrester is a device that contains a permanently sealed cushion of
gas or air designed to provide protection against excessive ___. -- Answer ✔✔
shock pressure
