Answers Rated A
Access (to) - -That which enables a fixture,
appliance or equipment to be reached by ready
access or by a means that first requires the Backsiphonage - -The backflow of
removal or movement of a panel, door or similar potentially contaminated water into the potable
obstruction. water system as a result of the pressure in the
potable water system falling below atmospheric
pressure of the plumbing fixtures, pools, tanks or
Air Break (Drainage System) - -A piping vats connected to the potable water distribution
arrangement in which a drain from a fixture, piping.
appliance or device discharges indirectly into
another fixture, receptacle or interceptor at a
point below the flood level rim and above the trap Backflow Connection - -Any arrangement
seal. whereby backflow is possible.
Air Gap (Drainage System) - -The Backflow Preventer - -A backflow
unobstructed vertical distance through the free prevention assembly, a backflow prevention
atmosphere between the outlet of the waste pipe device or other means or method to prevent
and the flood level rim of the receptacle into backflow into the potable water supply.
which the waste pipe is discharging. The
distance between the waste pipe outlet and the
flood level rim of the receptor must be at least Bathroom Group - -A group of fixtures
twice the diameter of the indirect waste pipe. consisting of a water closet, lavatory, bathtub or
shower, including or excluding a bidet, an
emergency floor drain or both. Such fixtures are
Air Gap (Water Distribution System) - -The located together on the same floor level.
unobstructed vertical distance through the free
atmosphere between the lowest opening from
any pipe or faucet supplying water to a tank, Branch Interval - -A vertical measurement
plumbing fixture or other device and the flood of distance, 8 feet (2438 mm) or more in
level rim of the receptacle. developed length, between the connections of
horizontal branches to a drainage stack.
Measurements are taken down the stack from the
Appliance - -Any apparatus or device that highest horizontal branch connection.
utilizes a fuel or a raw material as a fuel to
produce light, heat, power, refrigeration or air
conditioning that compresses fuel gases. Branch Vent - -A vent connecting one or
more individual vents with a vent stack or stack
vent.
Backflow - -Pressure created by any
means in the water distribution system, which by
being in excess of the pressure in the water Building Drain - -That part of the lowest
supply mains causes a potential backflow piping of a drainage system that receives the
condition.
, Journeyman Plumbing Test (Texas) Questions and
Answers Rated A
discharge from soil, waste and other drainage the spread of disease by sewage, industrial fluids
pipes inside and that extends 30 inches (762 or waste.
mm) in developed length of pipe beyond the
exterior walls of the building and conveys the
drainage to the building sewer. Cross Contamination - -Any physical
connection or arrangement between two
otherwise separate piping systems, one of which
Code - -These regulations, subsequent contains portable water and the other, either
amendments thereto or any emergency rules or water of unknown or questionable safety or
regulations that the administrative authority stream, gas or chemical, whereby their exists the
having jurisdiction has lawfully adopted possibility for flow from one system to the other,
with the direction of flow depending on the
pressure differential between the two systems
Combination Waste and Vent System - -A ("Backflow").
specially designed system of waste piping
embodying the horizontal wet venting of one or
more sinks, lavatories, drinking fountains or floor Developed Length - -The length of a pipe
drains by means of a common waste and vent measured along the center line of the pipe and
pipe adequately sized to provide free movement fittings.
of air above the flow line of the drain.
Direct-Vent Appliances - -Appliances that
Pipe Material / Max Horizontal Bracing / Max are constructed and installed so that air from
Vertical Bracing - -ABS / 4ft / 10ft combustion is derived directly from the outdoor
Cast-Iron / 5ft / 15ft atmosphere and all flu gases are discharged
Copper Tubing (1 1/4 or smaller) / 6ft / 10ft directly to the outdoor atmosphere.
Copper Tubing (1 1/2 or larger) / 10ft / 10ft
PEX / 32in / 10ft
PVC / 4ft / 10ft Fixture Drain - -The drain from the trap of a
fixture to a junction with any other drain pipe
Common Vent - -A vent connecting at the
junction of two fixture drains or to a fixture branch Fixture Supply - -The water supply pipe
and serving as a vent for both fixtures. connecting a fixture to a branch water supply
pipe or directly to a main water supply pipe.
Conductor - -A pipe inside the building that
conveys stormwater from the roof to a storm or Flood Level Rim - -the edge of the
combined building drain. receptacle from which water overflows.
Contamination - -An impairment of the Graywater - -Water discharge from
quality of the potable water that creates an actual lavatories, bathtubs, showers, clothes washers
hazard to the public health through poisoning or