BACKFLOW PREVENTION PRACTICE
SOLUTION TESTED QUESTIONS AND
ANSWERS GRADED A+
●● Overflow level
Answer: The maximum height that water or liquid will rise in a
receptacle before it flows over the rim.
●● Backflow
Answer: A hydraulic condition, caused by a difference in pressures, in
which non-potable water or other fluids flow into a potable water
system.
●● RPBP
Answer: A shortened name for a reduced pressure backflow preventer
●● Air Gap
Answer: In plumbing, 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
●● potential cross connection
,Answer: Any arrangements of pipes, fittings, or devices that indirectly
connects a potable water supply to a non-potable source
●● Backsiphonage
Answer: A backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (subatmospheric)
●● Hose bib
Answer: A faucet to which a hose may be attached
●● Reduced pressure zone backflow preventer
Answer: A mechanical device consisting of two independnetly operating,
spring-loaded check valves with a reduced pressure zone between check
valves.
●● Auxiliary supply
Answer: Any water source or system, other than the potable water
supply, that may be available in the building or premesis.
●● Actual Cross Connection
Answer: Any arrangement of pipes, fittings, that connects a potable
water supply directly to a non-potable source at all times.
●● Feed water
, Answer: Water that is added to a commercial or industrial system and
subsequently used by the system, such as water that is fed to a boiler to
produce steam.
●● Pressure vacuum breaker
Answer: A device designed to prevent backsiphonsge, consisting of one
independently operating spring-loaded check valve and an independently
operating spring-loaded air-inlet valve.
●● Bypass
Answer: In cross-connection control, any pipe arrangement that passes
water around a protective device, causing it to be ineffective.
●● Back pressure
Answer: A backflow condition in which a pump, elevated tank, boiler or
other means results in a downstream pressure greater than the supply
pressure
●● Cross connection
Answer: Any arrangement of pipes, fitting, fixtures, or devices that
connects a non potable system to a potable water system
●● Atmospheric vacuum breaker
SOLUTION TESTED QUESTIONS AND
ANSWERS GRADED A+
●● Overflow level
Answer: The maximum height that water or liquid will rise in a
receptacle before it flows over the rim.
●● Backflow
Answer: A hydraulic condition, caused by a difference in pressures, in
which non-potable water or other fluids flow into a potable water
system.
●● RPBP
Answer: A shortened name for a reduced pressure backflow preventer
●● Air Gap
Answer: In plumbing, 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
●● potential cross connection
,Answer: Any arrangements of pipes, fittings, or devices that indirectly
connects a potable water supply to a non-potable source
●● Backsiphonage
Answer: A backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (subatmospheric)
●● Hose bib
Answer: A faucet to which a hose may be attached
●● Reduced pressure zone backflow preventer
Answer: A mechanical device consisting of two independnetly operating,
spring-loaded check valves with a reduced pressure zone between check
valves.
●● Auxiliary supply
Answer: Any water source or system, other than the potable water
supply, that may be available in the building or premesis.
●● Actual Cross Connection
Answer: Any arrangement of pipes, fittings, that connects a potable
water supply directly to a non-potable source at all times.
●● Feed water
, Answer: Water that is added to a commercial or industrial system and
subsequently used by the system, such as water that is fed to a boiler to
produce steam.
●● Pressure vacuum breaker
Answer: A device designed to prevent backsiphonsge, consisting of one
independently operating spring-loaded check valve and an independently
operating spring-loaded air-inlet valve.
●● Bypass
Answer: In cross-connection control, any pipe arrangement that passes
water around a protective device, causing it to be ineffective.
●● Back pressure
Answer: A backflow condition in which a pump, elevated tank, boiler or
other means results in a downstream pressure greater than the supply
pressure
●● Cross connection
Answer: Any arrangement of pipes, fitting, fixtures, or devices that
connects a non potable system to a potable water system
●● Atmospheric vacuum breaker
