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Journeyman Plumbing Test (Texas)
Questions and Answers Latest 2026
Access (to) Ans: 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) Ans: 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) Ans: 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) Ans: 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 Ans: Any apparatus or device that utilizes a
fuel or a raw material as a fuel to produce light, heat,
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power, refrigeration or air conditioning that compresses
fuel gases.
Backflow Ans: 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 Ans: 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 Ans: Any arrangement whereby
backflow is possible.
Backflow Preventer Ans: A backflow prevention assembly,
a backflow prevention device or other means or method
to prevent backflow into the potable water supply.
Bathroom Group Ans: 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 Ans: 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.
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Branch Vent Ans: A vent connecting one or more
individual vents with a vent stack or stack vent.
Building Drain Ans: 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 Ans: 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 Ans: 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 Ans: 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
© 2025 All rights reserved
Journeyman Plumbing Test (Texas)
Questions and Answers Latest 2026
Access (to) Ans: 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) Ans: 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) Ans: 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) Ans: 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 Ans: Any apparatus or device that utilizes a
fuel or a raw material as a fuel to produce light, heat,
© 2025 All rights reserved
, 2 | Page
power, refrigeration or air conditioning that compresses
fuel gases.
Backflow Ans: 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 Ans: 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 Ans: Any arrangement whereby
backflow is possible.
Backflow Preventer Ans: A backflow prevention assembly,
a backflow prevention device or other means or method
to prevent backflow into the potable water supply.
Bathroom Group Ans: 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 Ans: 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.
© 2025 All rights reserved
, 3 | Page
Branch Vent Ans: A vent connecting one or more
individual vents with a vent stack or stack vent.
Building Drain Ans: 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 Ans: 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 Ans: 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 Ans: 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
© 2025 All rights reserved
