BACKFLOW PREVENTION ASSEMBLY

BACKFLOW PREVENTION ASSEMBLY

TESTER EXAM LATEST

EXAM PRACTICE QUESTIONS AND

CORRECT DETAILED ANSWERS

(VERIFIED ANSWERS)

What is an actual cross connection? Correct Answer Any arrangement of pipes, fittings, or devices that connects a potable water supply directly to a non-potable source at all times

What is an Air Gap? Correct Answer The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or outlet supplying water to a tank, plumbing fixture, or other container, and the overflow rim of that container

What does AVB stand for? Correct Answer Atmospheric Vacuum Breaker

What is an Atmospheric Vacuum Breaker? Correct Answer A mechanical device consisting of a float check valve and an air- inlet port designed to prevent backsiphonage

What is an auxiliary supply? Correct Answer Any water source or system, other than the potable water supply, that may be available in the building or premises

What is backflow? Correct Answer A hydraulic condition, caused by difference in pressures, in which non-potable water or other fluids flow into a potable water system

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What is backpressure? Correct Answer A backflow condition in which a pump, elevated tank, boiler, 0r other means results in a downstream pressure greater than the supply pressure

What is backsiphange? Correct Answer A backflow condition in which the pressure in the distribution system is less than atmospheric pressure (sub-atmospheric)

What is a bypass? Correct Answer In cross-connection control, any pipe arrangement that passes water around a protective device, casing it to be ineffective

What is a carrier? Correct Answer A human or animal that carries disease germs and can pass them to another person or animal without getting the disease itself

What is the purpose of a check valve? Correct Answer To allow flow in only one direction

What is a cross connection? Correct Answer Any arrangement of pipes, fittings, fixtures, or devices that connects a non-potable system to a potable water system

What does DCVA stand for? Correct Answer Double Check Valve Assembly

What is a DCVA? Correct Answer A testable mechanical device consisting of two independently operating, spring-loaded check valves

What is feed water? Correct Answer Water that is added to a commercial or industrial system and is subsequently used by the system, such as water that is fed to a boiler to produce steam

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