SPECIALIST AND TESTER ACTUAL EXAM
PAPER 2026 FULL QUESTIONS AND
CORRECT ANSWERS GRADED A+
●● air break. Answer: 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. Answer: 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). Answer: a manufactured
device with a visible integral space between the inlet and outlet of the
fitting that prevents backflow
●● american water works association (AWWA). Answer: 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. Answer: 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. Answer: 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. Answer: 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. Answer: 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. Answer: 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. Answer: any water supply on or available to
the premises other than the primary potable water supply
,●● backflow. Answer: a flowing back or reversal of the normal direction
of flow
●● backflow preventer. Answer: a device or method that prevents
backflow
●● backflow prevention device tester. Answer: 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. Answer: a pressure higher than the supply pressure
●● Back siphonage. Answer: backflow caused by pressure below
atmospheric in the supply system
●● barometric loop. Answer: 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). Answer: the level of submergence at which a back
siphonage preventer ceases to prevent back siphonage
, ●● cross connection control program. Answer: a program initiated by
the authority having jurisdiction to administer and regulate the selection
installations testing and maintenance of backflow preventers
●● differential pressure gauge. Answer: 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
●● differential pressure relief valve. Answer: one of the three main
components of the reduces pressure principle backflow assembly which
is designed to open and discharge water in the event either check valve
should leak
●● double check detector assembly (dcda). Answer: a backflow
preventer consisting of two approved double check valves set in parallel
equipped with a meter on the bypass line for the purpose of detecting
small amounts of water leakage or unauthorized use. dcdas are designed
to protect against back siphonage and back pressure
●● double check valve assembly (dcva). Answer: a backflow preventer
that consists of two force loaded independently acting check valves and
two resilient seated shut off valves located at each end of the dcva
backflow preventer and is fitted with resilient seated test cocks. dcva
backflow preventers are designed for use under continuous pressure