AWWA cross connection 1 to 5 Questions and Answers Latest
2025/2026 GRADED A+
absolute pressure
gauge pressure plus atmospheric pressure
it is measured in pounds per square inch absolute (psia) or in kilopascals
(kpaA)
air break
the unobstructed vertical distance between the lowest point of of an
indirectly soil or waste pipe and the flood level rim of the fixture into
which it discharges
air gap
the unobstructed vertical distance through air between the lowest point of
the water supply outlet and the flood level rim of the fixture or device into
which the outlet
discharges
air space type vacuum breaker (ASVB)
a manufactured device with a visible integral space between the inlet and
outlet of the fitting that prevents backflow
american water works association (AWWA)
the international professional organization dedicated to the improvement of
water quality and supply. it is an organization that sets standards for the
,water industry.
approved testable backflow preventer
a backflow preventer assembled as a unit with properly located and
approved
shutoff valves and test cocks so the device can be approved by a recognized
testing agency as meeting material, construction and operating
requirements that are
acceptable to the authority having jurisdiction.
area protection
backflow protection provided for a section of a piping system with potable
and non potable connections (that may or may not be considered cross
conections)
downstream of a backflow preventer.
aspirator
an apparatus for removing or ejecting liquids or gases using suctions by
means of the venturi effect. it can be used to mix liquids or gases with
water and is commonly used in dental offices
atmospheric pressure
the pressure created by the weight of the atmosphere on a surface. when
elevation increases above sea level the atmospheric pressure decreases
the atmospheric
pressure at sea level is 101 kpa (14.7 psi) or 10.3m (33.9feet) water column at
sea level.
,atmospheric vacuum breaker
a vacuum breaker to designed to be under pressure only when water is being
drawn from the water supply system and for short intermediate periods of
time
auxiliary water supply
any water supply on or available to the premises other than the primary
potable water supply
backflow
a flowing back or reversal of the normal direction of flow
backflow preventer
a device or method that prevents backflow
backflow prevention device tester
a person who has shown competence to test backflow prevention devices
and is
certified in accordance with a canadian section of awwa. sometimes
referred to as a certified tester or ccc specialist.
back pressure
a pressure higher than the supply pressure
, Back siphonage
backflow caused by pressure below atmospheric in the supply system
barometric loop
a fabricated loop of piping connected to the potable water supply that rises
at least
10.7 meters (35 feet) at its uppermost point above the highest fixture is
serves. this type of backflow preventer protects against back siphonage
only
critical level (cl)
the level of submergence at which a back siphonage preventer ceases to
prevent back siphonage
cross connection control program
a program initiated by the authority having jurisdiction to administer and
regulate the selection installations testing and maintenance of backflow
preventers
differential pressure gauge
the electronic or mechanical test equipment that measures the difference in
pressure between two points such as the high pressure side and low
pressure side of a check valve within a assembly
2025/2026 GRADED A+
absolute pressure
gauge pressure plus atmospheric pressure
it is measured in pounds per square inch absolute (psia) or in kilopascals
(kpaA)
air break
the unobstructed vertical distance between the lowest point of of an
indirectly soil or waste pipe and the flood level rim of the fixture into
which it discharges
air gap
the unobstructed vertical distance through air between the lowest point of
the water supply outlet and the flood level rim of the fixture or device into
which the outlet
discharges
air space type vacuum breaker (ASVB)
a manufactured device with a visible integral space between the inlet and
outlet of the fitting that prevents backflow
american water works association (AWWA)
the international professional organization dedicated to the improvement of
water quality and supply. it is an organization that sets standards for the
,water industry.
approved testable backflow preventer
a backflow preventer assembled as a unit with properly located and
approved
shutoff valves and test cocks so the device can be approved by a recognized
testing agency as meeting material, construction and operating
requirements that are
acceptable to the authority having jurisdiction.
area protection
backflow protection provided for a section of a piping system with potable
and non potable connections (that may or may not be considered cross
conections)
downstream of a backflow preventer.
aspirator
an apparatus for removing or ejecting liquids or gases using suctions by
means of the venturi effect. it can be used to mix liquids or gases with
water and is commonly used in dental offices
atmospheric pressure
the pressure created by the weight of the atmosphere on a surface. when
elevation increases above sea level the atmospheric pressure decreases
the atmospheric
pressure at sea level is 101 kpa (14.7 psi) or 10.3m (33.9feet) water column at
sea level.
,atmospheric vacuum breaker
a vacuum breaker to designed to be under pressure only when water is being
drawn from the water supply system and for short intermediate periods of
time
auxiliary water supply
any water supply on or available to the premises other than the primary
potable water supply
backflow
a flowing back or reversal of the normal direction of flow
backflow preventer
a device or method that prevents backflow
backflow prevention device tester
a person who has shown competence to test backflow prevention devices
and is
certified in accordance with a canadian section of awwa. sometimes
referred to as a certified tester or ccc specialist.
back pressure
a pressure higher than the supply pressure
, Back siphonage
backflow caused by pressure below atmospheric in the supply system
barometric loop
a fabricated loop of piping connected to the potable water supply that rises
at least
10.7 meters (35 feet) at its uppermost point above the highest fixture is
serves. this type of backflow preventer protects against back siphonage
only
critical level (cl)
the level of submergence at which a back siphonage preventer ceases to
prevent back siphonage
cross connection control program
a program initiated by the authority having jurisdiction to administer and
regulate the selection installations testing and maintenance of backflow
preventers
differential pressure gauge
the electronic or mechanical test equipment that measures the difference in
pressure between two points such as the high pressure side and low
pressure side of a check valve within a assembly
