(TEXAS) QUESTIONS AND VERIFIED
ANSWER| 100% CORRECT| GRADED A+
Access (to) - ANSWERThat which enables a fixture, appliance or equipment to be
reached by ready access or by a means that first requires the removal or movement of
a panel, door or similar obstruction.
Air Break (Drainage System) - ANSWERA piping arrangement in which a drain from a
fixture, appliance or device discharges indirectly into another fixture, receptacle or
interceptor at a point below the flood level rim and above the trap seal.
Air Gap (Drainage System) - ANSWERThe unobstructed vertical distance through the
free atmosphere between the outlet of the waste pipe and the flood level rim of the
receptacle into 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 twice the diameter of
the indirect waste pipe.
Air Gap (Water Distribution System) - ANSWERThe unobstructed vertical distance
through the free atmosphere between the lowest opening from any pipe or faucet
supplying water to a tank, plumbing fixture or other device and the flood level rim of the
receptacle.
Appliance - ANSWERAny apparatus or device that utilizes a fuel or a raw material as a
fuel to produce light, heat, power, refrigeration or air conditioning that compresses fuel
gases.
Backflow - ANSWERPressure created by any means in the water distribution system,
which by being in excess of the pressure in the water supply mains causes a potential
backflow condition.
Backsiphonage - ANSWERThe backflow of potentially contaminated water into the
potable water system as a result of the pressure in the potable water system falling
below atmospheric pressure of the plumbing fixtures, pools, tanks or vats connected to
the potable water distribution piping.
Backflow Connection - ANSWERAny arrangement whereby backflow is possible.
Backflow Preventer - ANSWERA backflow prevention assembly, a backflow prevention
device or other means or method to prevent backflow into the potable water supply.
, Bathroom Group - ANSWERA group of fixtures consisting of a water closet, lavatory,
bathtub or shower, including or excluding a bidet, an emergency floor drain or both.
Such fixtures are located together on the same floor level.
Branch Interval - ANSWERA vertical measurement of distance, 8 feet (2438 mm) or
more in developed length, between the connections of horizontal branches to a
drainage stack. Measurements are taken down the stack from the highest horizontal
branch connection.
Branch Vent - ANSWERA vent connecting one or more individual vents with a vent
stack or stack vent.
Building Drain - ANSWERThat part of the lowest piping of a drainage system that
receives the discharge from soil, waste and other drainage pipes inside and that
extends 30 inches (762 mm) in developed length of pipe beyond the exterior walls of the
building and conveys the drainage to the building sewer.
Code - ANSWERThese regulations, subsequent amendments thereto or any
emergency rules or regulations that the administrative authority having jurisdiction has
lawfully adopted
Combination Waste and Vent System - ANSWERA specially designed system of waste
piping embodying the horizontal wet venting of one or more sinks, lavatories, drinking
fountains or floor drains by means of a common waste and vent pipe adequately sized
to provide free movement of air above the flow line of the drain.
Pipe Material / Max Horizontal Bracing / Max Vertical Bracing - ANSWERABS / 4ft / 10ft
Cast-Iron / 5ft / 15ft
Copper Tubing (1 1/4 or smaller) / 6ft / 10ft
Copper Tubing (1 1/2 or larger) / 10ft / 10ft
PEX / 32in / 10ft
PVC / 4ft / 10ft
Common Vent - ANSWERA vent connecting at the junction of two fixture drains or to a
fixture branch and serving as a vent for both fixtures.
Conductor - ANSWERA pipe inside the building that conveys stormwater from the roof
to a storm or combined building drain.
Contamination - ANSWERAn impairment of the quality of the potable water that creates
an actual hazard to the public health through poisoning or the spread of disease by
sewage, industrial fluids or waste.
Cross Contamination - ANSWERAny physical connection or arrangement between two
otherwise separate piping systems, one of which contains portable water and the other,
either water of unknown or questionable safety or stream, gas or chemical, whereby