BACKFLOW PREVENTION ASSEMBLY
TESTER TRAINING. EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
Salmonellosis - ANS A disease caused by pathogenic bacterica (often associated with
chicken), which affects the intestinal tract. The primary symptom is severe diarrhea.
A valve designed to open in the direction of normal flow and close with the reversal of flow. -
ANS Check valve
Overflow level - ANS The maximum height that water or liquid will rise in a receptacle before
it flows over the rim.
Backflow - ANS A hydraulic condition, caused by a difference in pressures, in which non-
potable water or other fluids flow into a potable water system.
RPBP - ANS A shortened name for a reduced pressure backflow preventer
Air Gap - ANS 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
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,potential cross connection - ANS Any arrangements of pipes, fittings, or devices that
indirectly connects a potable water supply to a non-potable source
Dysentery - ANS A disease (sometime waterborne) caused by pathogenic microorganisms
and characterized by severe diarrhea with passage of mucus and blood
Backsiphonage - ANS A backflow condition in which the pressure in the distribution system is
less than atmospheric pressure (subatmospheric)
Hose bib - ANS A faucet to which a hose may be attached
Carrier - ANS A human or animal that carries germs and can pass them to another person
without getting the disease himself.
Reduced pressure zone backflow preventer - ANS A mechanical device consisting of two
independnetly operating, spring-loaded check valves with a reduced pressure zone between
check valves.
Auxiliary supply - ANS Any water source or system, other than the potable water supply, that
may be available in the building or premesis.
Actual Cross Connection - ANS Any arrangement of pipes, fittings, that connects a potable
water supply directly to a non-potable source at all times.
Hepatitis - ANS An inflammation of the liver caused by a pathogenic virus. Symptoms are
jaundice, general weakness, nausea, and the presence of dark urine.
Feed water - ANS 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.
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Pressure vacuum breaker - ANS 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 - ANS In cross-connection control, any pipe arrangement that passes water around a
protective device, causing it to be ineffective.
Gastroenteritis - ANS An intestinal disease caused by pathogenic microorganisms, which
involves inflammation of the stomach and intestines. Symptoms are diarrhea, pain, and nausea.
Back pressure - ANS A backflow condition in which a pump, elevated tank, boiler or other
means results in a downstream pressure greater than the supply pressure
Incubation period - ANS The time period that elapses between the time a person is exposed
to some disease and the time that person shows the first sign of symptom of the disease.
Cross connection - ANS Any arrangement of pipes, fitting, fixtures, or devices that connects a
non potable system to a potable water system
Atmospheric vacuum breaker - ANS A mechanical device consisting of a float check valve and
an air inlet port designed to prevent backsiphonage
Double Check Valve Assembly - ANS A testable mechanical device consiting of two
independently operating, spring-loaded check valves
Potable - ANS Water that is safe for human consumption
Backflow - ANS The reversal of the normal direction of flow
3 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
TESTER TRAINING. EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
Salmonellosis - ANS A disease caused by pathogenic bacterica (often associated with
chicken), which affects the intestinal tract. The primary symptom is severe diarrhea.
A valve designed to open in the direction of normal flow and close with the reversal of flow. -
ANS Check valve
Overflow level - ANS The maximum height that water or liquid will rise in a receptacle before
it flows over the rim.
Backflow - ANS A hydraulic condition, caused by a difference in pressures, in which non-
potable water or other fluids flow into a potable water system.
RPBP - ANS A shortened name for a reduced pressure backflow preventer
Air Gap - ANS 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
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,potential cross connection - ANS Any arrangements of pipes, fittings, or devices that
indirectly connects a potable water supply to a non-potable source
Dysentery - ANS A disease (sometime waterborne) caused by pathogenic microorganisms
and characterized by severe diarrhea with passage of mucus and blood
Backsiphonage - ANS A backflow condition in which the pressure in the distribution system is
less than atmospheric pressure (subatmospheric)
Hose bib - ANS A faucet to which a hose may be attached
Carrier - ANS A human or animal that carries germs and can pass them to another person
without getting the disease himself.
Reduced pressure zone backflow preventer - ANS A mechanical device consisting of two
independnetly operating, spring-loaded check valves with a reduced pressure zone between
check valves.
Auxiliary supply - ANS Any water source or system, other than the potable water supply, that
may be available in the building or premesis.
Actual Cross Connection - ANS Any arrangement of pipes, fittings, that connects a potable
water supply directly to a non-potable source at all times.
Hepatitis - ANS An inflammation of the liver caused by a pathogenic virus. Symptoms are
jaundice, general weakness, nausea, and the presence of dark urine.
Feed water - ANS 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.
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Pressure vacuum breaker - ANS 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 - ANS In cross-connection control, any pipe arrangement that passes water around a
protective device, causing it to be ineffective.
Gastroenteritis - ANS An intestinal disease caused by pathogenic microorganisms, which
involves inflammation of the stomach and intestines. Symptoms are diarrhea, pain, and nausea.
Back pressure - ANS A backflow condition in which a pump, elevated tank, boiler or other
means results in a downstream pressure greater than the supply pressure
Incubation period - ANS The time period that elapses between the time a person is exposed
to some disease and the time that person shows the first sign of symptom of the disease.
Cross connection - ANS Any arrangement of pipes, fitting, fixtures, or devices that connects a
non potable system to a potable water system
Atmospheric vacuum breaker - ANS A mechanical device consisting of a float check valve and
an air inlet port designed to prevent backsiphonage
Double Check Valve Assembly - ANS A testable mechanical device consiting of two
independently operating, spring-loaded check valves
Potable - ANS Water that is safe for human consumption
Backflow - ANS The reversal of the normal direction of flow
3 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
