PLUMBING LEVEL 3 EXAM ACTUAL EXAM 60 QUESTIONS AND
CORRECT DETAILED ANSWERS
Absolute pressure - ANSWER: Gauge pressure plus atmospheric pressure equals
absolute pressure. It is measured in pounds per square inch absolute (psia) or
kilopascals absolute (kPaA)
Accessible - ANSWER: Backflow preventers should be installed according to
minimum standards such as plumbing codes, local codes, manufacturer
recommendations, industry standard clearances or local enforcement documents
so they can easily and safely be reached for testing, repair, replacement and
maintenance. Access panels, removable enclosures, permanent, secure scaffolding
and doors can be acceptable solutions to provide for adequate access.
Air break - ANSWER: The unobstructed vertical distance between the lowest point
of an indirectly connected soil -or- waste pipe and the flood level rim of the fixture
into which it discharges
Air gap (AG) - ANSWER: The unobstructed vertical distance through air between the
lowest point of the water supply outlet and the flood level rim of the fixture 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 internal professional
organization dedicated to the improvement of water quality and supply. AWWA is
an organization that sets standards for the water industry. There are 5 Canadian
sections of AWWA that are acting certification bodies of cross connection control
and back flow prevention in Canada
Approved Testable Backflow Preventer - ANSWER: A backflow preventer assembled
as a unit with properly located and approved shit off 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. Often referred to as approved backflow prevention assembly.
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-connections) down stream of a backflow preventer .
Aspiration - ANSWER: An apparatus for removing ejecting liquids or gases using
suction by means of the Venturi effect. It can be used to mix gases with water and
is commonly used in dental offices and mortuaries
, 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. Atmospheric pressure at sea level is 101 kPa (14.7
psi) or 10.3m (33.9') of water column at sea level
Atmospheric Vacuum breaker (AVB) - ANSWER: A vacuum breaker designed to be
under pressure only when water is being drawn from the water supply system and
for short, intermittent periods of time
Authority having Jurisdiction AHJ - ANSWER: The local official, board, council,
department, organization or agency given the responsibility and authorized by
federal, provincial, municipal, or other political entity to administer and enforce
the requirements of a code, standard or enforcement document or to approve
equipment, materials, installations or procedures.. also recurred you as " local
administrative authority, local enforcement authority
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 the flow
Back flow preventer - ANSWER: A device or method the prevents back flow
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 the AWWA. Sometimes referred to as " 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 it serves. This type of back flow preventer protects against back
siphonage conditions only..
Confined space - ANSWER: An enclosed or partially enclosed space that has
restricted access and egress and that because of its design, construction, location,
atmosphere, and content or work activity Theron, is or can become hazardous to
the worker
Critical level - ANSWER: The level of submergence at which a back siphonage
preventer ceases to prevent back siphonage
CORRECT DETAILED ANSWERS
Absolute pressure - ANSWER: Gauge pressure plus atmospheric pressure equals
absolute pressure. It is measured in pounds per square inch absolute (psia) or
kilopascals absolute (kPaA)
Accessible - ANSWER: Backflow preventers should be installed according to
minimum standards such as plumbing codes, local codes, manufacturer
recommendations, industry standard clearances or local enforcement documents
so they can easily and safely be reached for testing, repair, replacement and
maintenance. Access panels, removable enclosures, permanent, secure scaffolding
and doors can be acceptable solutions to provide for adequate access.
Air break - ANSWER: The unobstructed vertical distance between the lowest point
of an indirectly connected soil -or- waste pipe and the flood level rim of the fixture
into which it discharges
Air gap (AG) - ANSWER: The unobstructed vertical distance through air between the
lowest point of the water supply outlet and the flood level rim of the fixture 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 internal professional
organization dedicated to the improvement of water quality and supply. AWWA is
an organization that sets standards for the water industry. There are 5 Canadian
sections of AWWA that are acting certification bodies of cross connection control
and back flow prevention in Canada
Approved Testable Backflow Preventer - ANSWER: A backflow preventer assembled
as a unit with properly located and approved shit off 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. Often referred to as approved backflow prevention assembly.
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-connections) down stream of a backflow preventer .
Aspiration - ANSWER: An apparatus for removing ejecting liquids or gases using
suction by means of the Venturi effect. It can be used to mix gases with water and
is commonly used in dental offices and mortuaries
, 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. Atmospheric pressure at sea level is 101 kPa (14.7
psi) or 10.3m (33.9') of water column at sea level
Atmospheric Vacuum breaker (AVB) - ANSWER: A vacuum breaker designed to be
under pressure only when water is being drawn from the water supply system and
for short, intermittent periods of time
Authority having Jurisdiction AHJ - ANSWER: The local official, board, council,
department, organization or agency given the responsibility and authorized by
federal, provincial, municipal, or other political entity to administer and enforce
the requirements of a code, standard or enforcement document or to approve
equipment, materials, installations or procedures.. also recurred you as " local
administrative authority, local enforcement authority
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 the flow
Back flow preventer - ANSWER: A device or method the prevents back flow
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 the AWWA. Sometimes referred to as " 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 it serves. This type of back flow preventer protects against back
siphonage conditions only..
Confined space - ANSWER: An enclosed or partially enclosed space that has
restricted access and egress and that because of its design, construction, location,
atmosphere, and content or work activity Theron, is or can become hazardous to
the worker
Critical level - ANSWER: The level of submergence at which a back siphonage
preventer ceases to prevent back siphonage
