Journeyman Plumbing Test (Texas) 2026–2027 Complete
Study Guide | Practice Questions, Verified Answers &
Exam Prep
Access (to) - correct answers -That 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) - correct answers -A 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) - correct answers -The 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) - correct answers -The 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 - correct answers -Any 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 - correct answers -Pressure 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 - correct answers -The 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.
1
,Backflow Connection - correct answers -Any arrangement whereby backflow is possible.
Backflow Preventer - correct answers -A backflow prevention assembly, a backflow prevention device or
other means or method to prevent backflow into the potable water supply.
Bathroom Group - correct answers -A 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 - correct answers -A 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 - correct answers -A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain - correct answers -That 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 - correct answers -These regulations, subsequent amendments thereto or any emergency rules or
regulations that the administrative authority having jurisdiction has lawfully adopted
Combination Waste and Vent System - correct answers -A 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.
2
, Pipe Material / Max Horizontal Bracing / Max Vertical Bracing - correct answers -ABS / 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 - correct answers -A vent connecting at the junction of two fixture drains or to a fixture
branch and serving as a vent for both fixtures.
Conductor - correct answers -A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination - correct answers -An 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 - correct answers -Any 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 their exists the possibility for flow
from one system to the other, with the direction of flow depending on the pressure differential between
the two systems ("Backflow").
Developed Length - correct answers -The length of a pipe measured along the center line of the pipe
and fittings.
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Study Guide | Practice Questions, Verified Answers &
Exam Prep
Access (to) - correct answers -That 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) - correct answers -A 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) - correct answers -The 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) - correct answers -The 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 - correct answers -Any 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 - correct answers -Pressure 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 - correct answers -The 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.
1
,Backflow Connection - correct answers -Any arrangement whereby backflow is possible.
Backflow Preventer - correct answers -A backflow prevention assembly, a backflow prevention device or
other means or method to prevent backflow into the potable water supply.
Bathroom Group - correct answers -A 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 - correct answers -A 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 - correct answers -A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain - correct answers -That 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 - correct answers -These regulations, subsequent amendments thereto or any emergency rules or
regulations that the administrative authority having jurisdiction has lawfully adopted
Combination Waste and Vent System - correct answers -A 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.
2
, Pipe Material / Max Horizontal Bracing / Max Vertical Bracing - correct answers -ABS / 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 - correct answers -A vent connecting at the junction of two fixture drains or to a fixture
branch and serving as a vent for both fixtures.
Conductor - correct answers -A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination - correct answers -An 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 - correct answers -Any 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 their exists the possibility for flow
from one system to the other, with the direction of flow depending on the pressure differential between
the two systems ("Backflow").
Developed Length - correct answers -The length of a pipe measured along the center line of the pipe
and fittings.
3
