BACKFLOW PREVENTION ASSEMBLY
TESTER TRAINING CERTIFICATION
EVALUATION QUESTIONS ANSWERS
COMPLETE SOLUTION VERIFIED PASS
●● What is an Air Gap?
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?
Answer: Atmospheric Vacuum Breaker
●● What is an Atmospheric Vacuum Breaker?
Answer: A mechanical device consisting of a float check valve and an
air-inlet port designed to prevent backsiphonage
●● What is an auxiliary supply?
Answer: Any water source or system, other than the potable water
supply, that may be available in the building or premises
●● What is backflow?
,Answer: A hydraulic condition, caused by difference in pressures, in
which non-potable water or other fluids flow into a potable water system
●● What is backpressure?
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?
Answer: A backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (sub-atmospheric)
●● What is a bypass?
Answer: In cross-connection control, any pipe arrangement that passes
water around a protective device, casing it to be ineffective
●● What is a carrier?
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?
Answer: To allow flow in only one direction
●● What is a cross connection?
, 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?
Answer: Double Check Valve Assembly
●● What is a DCVA?
Answer: A testable mechanical device consisting of two independently
operating, spring-loaded check valves
●● What is feed water?
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
●● What is an incubation period for a disease?
Answer: The time period that elapses between the time a person is
exposed to some disease and the time that person shows the first sign or
symptom of the disease
●● What is an overflow level?
Answer: The maximum height that water or liquid will rise in a
receptacle before it flows over the rim
TESTER TRAINING CERTIFICATION
EVALUATION QUESTIONS ANSWERS
COMPLETE SOLUTION VERIFIED PASS
●● What is an Air Gap?
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?
Answer: Atmospheric Vacuum Breaker
●● What is an Atmospheric Vacuum Breaker?
Answer: A mechanical device consisting of a float check valve and an
air-inlet port designed to prevent backsiphonage
●● What is an auxiliary supply?
Answer: Any water source or system, other than the potable water
supply, that may be available in the building or premises
●● What is backflow?
,Answer: A hydraulic condition, caused by difference in pressures, in
which non-potable water or other fluids flow into a potable water system
●● What is backpressure?
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?
Answer: A backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (sub-atmospheric)
●● What is a bypass?
Answer: In cross-connection control, any pipe arrangement that passes
water around a protective device, casing it to be ineffective
●● What is a carrier?
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?
Answer: To allow flow in only one direction
●● What is a cross connection?
, 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?
Answer: Double Check Valve Assembly
●● What is a DCVA?
Answer: A testable mechanical device consisting of two independently
operating, spring-loaded check valves
●● What is feed water?
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
●● What is an incubation period for a disease?
Answer: The time period that elapses between the time a person is
exposed to some disease and the time that person shows the first sign or
symptom of the disease
●● What is an overflow level?
Answer: The maximum height that water or liquid will rise in a
receptacle before it flows over the rim
