JOURNEYMAN PLUMBING TEST
(TEXAS) QUESTIONS AND ANSWERS
Air Gap (Water Distribution System) ✅✅correct answ-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 answ-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 answ-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 answ-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 ✅✅correct answ-Any arrangement whereby backflow is possible.
Backflow Preventer ✅✅correct answ-A backflow prevention assembly, a backflow prevention
device or other means or method to prevent backflow into the potable water supply.
Bathroom Group ✅✅correct answ-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.
Access (to) ✅✅correct answ-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 answ-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 answ-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.
Branch Interval ✅✅correct answ-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 answ-A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain ✅✅correct answ-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 answ-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 answ-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 ✅✅correct answ-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 answ-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 answ-A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination ✅✅correct answ-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 answ-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 answ-The length of a pipe measured along the center line of the
pipe and fittings.
Direct-Vent Appliances ✅✅correct answ-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 ✅✅correct answ-The drain from the trap of a fixture to a junction with any other
drain pipe
Fixture Supply ✅✅correct answ-The water supply pipe connecting a fixture to a branch water
supply pipe or directly to a main water supply pipe.
Flood Level Rim ✅✅correct answ-the edge of the receptacle from which water overflows.
Graywater ✅✅correct answ-Water discharge from lavatories, bathtubs, showers, clothes washers
and laundry trays.
Grease Interceptor (Gravity) ✅✅correct answ-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.
(TEXAS) QUESTIONS AND ANSWERS
Air Gap (Water Distribution System) ✅✅correct answ-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 answ-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 answ-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 answ-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 ✅✅correct answ-Any arrangement whereby backflow is possible.
Backflow Preventer ✅✅correct answ-A backflow prevention assembly, a backflow prevention
device or other means or method to prevent backflow into the potable water supply.
Bathroom Group ✅✅correct answ-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.
Access (to) ✅✅correct answ-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 answ-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 answ-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.
Branch Interval ✅✅correct answ-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 answ-A vent connecting one or more individual vents with a vent stack or
stack vent.
Building Drain ✅✅correct answ-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 answ-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 answ-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 ✅✅correct answ-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 answ-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 answ-A pipe inside the building that conveys stormwater from the roof to a
storm or combined building drain.
Contamination ✅✅correct answ-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 answ-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 answ-The length of a pipe measured along the center line of the
pipe and fittings.
Direct-Vent Appliances ✅✅correct answ-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 ✅✅correct answ-The drain from the trap of a fixture to a junction with any other
drain pipe
Fixture Supply ✅✅correct answ-The water supply pipe connecting a fixture to a branch water
supply pipe or directly to a main water supply pipe.
Flood Level Rim ✅✅correct answ-the edge of the receptacle from which water overflows.
Graywater ✅✅correct answ-Water discharge from lavatories, bathtubs, showers, clothes washers
and laundry trays.
Grease Interceptor (Gravity) ✅✅correct answ-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.
