BACKFLOW PREVENTION ASSEMBLY
EXAMINATION TEST 2026 QUESTIONS WITH
ANSWERS GRADED A+
● A valve designed to open in the direction of normal flow and close
with the reversal of flow. . Answer: Check valve
● 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
● Dysentery . Answer: A disease (sometime waterborne) caused by
pathogenic microorganisms and characterized by severe diarrhea with
passage of mucus and blood
● 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
● Carrier . Answer: A human or animal that carries germs and can pass
them to another person without getting the disease himself.
● 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.
● Hepatitis . Answer: An inflammation of the liver caused by a
pathogenic virus. Symptoms are jaundice, general weakness, nausea, and
the presence of dark urine.
● 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.
● Gastroenteritis . Answer: An intestinal disease caused by pathogenic
microorganisms, which involves inflammation of the stomach and
intestines. Symptoms are diarrhea, pain, and nausea.
EXAMINATION TEST 2026 QUESTIONS WITH
ANSWERS GRADED A+
● A valve designed to open in the direction of normal flow and close
with the reversal of flow. . Answer: Check valve
● 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
● Dysentery . Answer: A disease (sometime waterborne) caused by
pathogenic microorganisms and characterized by severe diarrhea with
passage of mucus and blood
● 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
● Carrier . Answer: A human or animal that carries germs and can pass
them to another person without getting the disease himself.
● 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.
● Hepatitis . Answer: An inflammation of the liver caused by a
pathogenic virus. Symptoms are jaundice, general weakness, nausea, and
the presence of dark urine.
● 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.
● Gastroenteritis . Answer: An intestinal disease caused by pathogenic
microorganisms, which involves inflammation of the stomach and
intestines. Symptoms are diarrhea, pain, and nausea.
