Plumbing: Journeyman Test (Texas)
Final Questions All Solved Correctly
2025-2026 Updated.
Access (to) - Answer 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) - Answer 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) - Answer 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) - Answer 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 - Answer 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 - Answer 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 - Answer 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.
Backflow Connection - Answer Any arrangement whereby backflow is possible.
Backflow Preventer - Answer A backflow prevention assembly, a backflow prevention device
or other means or method to prevent backflow into the potable water supply.
Bathroom Group - Answer 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 - Answer 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 - Answer A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain - Answer 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 - Answer 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 - Answer 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.
Pipe Material / Max Horizontal Bracing / Max Vertical Bracing - Answer 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 - Answer A vent connecting at the junction of two fixture drains or to a fixture
branch and serving as a vent for both fixtures.
Conductor - Answer A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination - Answer 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 - Answer 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 - Answer The length of a pipe measured along the center line of the pipe
and fittings.
Direct-Vent Appliances - Answer Appliances that are constructed and installed so that air
from combustion is derived directly from the outdoor atmosphere and all flu gases are
discharged directly to the outdoor atmosphere.
Fixture Drain - Answer The drain from the trap of a fixture to a junction with any other drain
pipe
Fixture Supply - Answer The water supply pipe connecting a fixture to a branch water supply
pipe or directly to a main water supply pipe.
Flood Level Rim - Answer the edge of the receptacle from which water overflows.
Graywater - Answer Water discharge from lavatories, bathtubs, showers, clothes washers
and laundry trays.
Grease Interceptor (Gravity) - Answer plumbing apparatus of not less than 500 gallon
(1893L) capacity that are installed in the sanitary discharge system to intercept free-floating
fats, oils and grease from wastewater discharge. Separation is accomplished by gravity during a
retention time of not less than 30 minutes.
Horizontal Branch Drain - Answer a drainage branch pipe extending laterally from a soil or
waste stack or building drain with or without vertical sections or branches, that receives the
discharge from two or more fixture, drains or branches and conducts the discharge to the soil or
waste stack or to the building drain.
Horizontal Pipe - Answer Any pipe or fitting that makes an
angle of LESS than 45 degrees (0.79 rad) with the horizontal
Indirect Waste Pipe - Answer A waste pipe that does not connect directly with the drainage
system, but that discharges into the drainage system through an air brake or air gap into a trap,
fixture, receptor or interceptor.
Final Questions All Solved Correctly
2025-2026 Updated.
Access (to) - Answer 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) - Answer 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) - Answer 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) - Answer 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 - Answer 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 - Answer 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 - Answer 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.
Backflow Connection - Answer Any arrangement whereby backflow is possible.
Backflow Preventer - Answer A backflow prevention assembly, a backflow prevention device
or other means or method to prevent backflow into the potable water supply.
Bathroom Group - Answer 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 - Answer 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 - Answer A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain - Answer 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 - Answer 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 - Answer 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.
Pipe Material / Max Horizontal Bracing / Max Vertical Bracing - Answer 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 - Answer A vent connecting at the junction of two fixture drains or to a fixture
branch and serving as a vent for both fixtures.
Conductor - Answer A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination - Answer 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 - Answer 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 - Answer The length of a pipe measured along the center line of the pipe
and fittings.
Direct-Vent Appliances - Answer Appliances that are constructed and installed so that air
from combustion is derived directly from the outdoor atmosphere and all flu gases are
discharged directly to the outdoor atmosphere.
Fixture Drain - Answer The drain from the trap of a fixture to a junction with any other drain
pipe
Fixture Supply - Answer The water supply pipe connecting a fixture to a branch water supply
pipe or directly to a main water supply pipe.
Flood Level Rim - Answer the edge of the receptacle from which water overflows.
Graywater - Answer Water discharge from lavatories, bathtubs, showers, clothes washers
and laundry trays.
Grease Interceptor (Gravity) - Answer plumbing apparatus of not less than 500 gallon
(1893L) capacity that are installed in the sanitary discharge system to intercept free-floating
fats, oils and grease from wastewater discharge. Separation is accomplished by gravity during a
retention time of not less than 30 minutes.
Horizontal Branch Drain - Answer a drainage branch pipe extending laterally from a soil or
waste stack or building drain with or without vertical sections or branches, that receives the
discharge from two or more fixture, drains or branches and conducts the discharge to the soil or
waste stack or to the building drain.
Horizontal Pipe - Answer Any pipe or fitting that makes an
angle of LESS than 45 degrees (0.79 rad) with the horizontal
Indirect Waste Pipe - Answer A waste pipe that does not connect directly with the drainage
system, but that discharges into the drainage system through an air brake or air gap into a trap,
fixture, receptor or interceptor.
