MAINE JOURNEYMAN'S PLUMBING
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
When Plumbing code conflicts with mechanical code, which shall prevail? - Answer
✓✓Plumbing code
It is the duty of whom to notify the AHJ of work ready for inspection? - Answer ✓✓The
person doing the work
What is AHJ? - Answer ✓✓Authority Having Jurisdiction
How much notice must you give the AHJ prior to inspection? - Answer ✓✓24 Hours
hot water for public use lavatories shall be limited to what temp:
A) 105
B) 120
C)115
D)110 - Answer ✓✓120 F
Is the plumbing code minimum or maximum standards? - Answer ✓✓Minimum
requirements and standards
What is considered a bathroom? - Answer ✓✓A room with a shower or bathtub
that part of the lowest horizontal piping of a drainage system which receives the
discharge from soil, waste and other drainage pipes inside the walls of the building and
conveys it to the building sewer
A) Building subdrain
B)soil stack
C)Building Sewer
D)Building drain - Answer ✓✓Building drain
A vertical vent that is a continuation of the drain to which it connects
A) Continuous vent
B) Yoke Vent
C) Up Vent
D) Standard Vent - Answer ✓✓Continuous vent
a specially designed system of waste piping embodying the horizontal wet venting of
one or more sinks 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
, MAINE JOURNEYMAN'S PLUMBING
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
A) Combination Waste and Vent system
B) Drain air system
C) Oversized drain
D) Flat Drain - Answer ✓✓Combination Waste and vent system
Where parallel vertical stacks are installed, the connection for the soil stacks shall be
via:
A) Backflow tee
B) Typical Wye
C) Drain Tee
D) Yoke Vent - Answer ✓✓Yoke vent
You are looking at a 16 foot long cylinder that is 4 feet wide. If it is entirely full, how
much water is in the cylinder?
A) 200.96
B)256
C) 300 - Answer ✓✓200.96
Volume is (Pie X R^2)xHeight
(3.14x2^2) X 16 =200.96
The Volume of the cylinder is 200.96 cubic feet, many gallons of water is that?
A) 1503
B) 1600
C) 1000
D) 1263.72 - Answer ✓✓7.48 gallons per cubic foot
(200.96 X 7.48) = 1503.2 gallons
Developed Length - Answer ✓✓The length along the center of the pipe and fitting
Vertical pipe - Answer ✓✓any pipe or fitting installed in a vertical position or which
forms an angle of not more than 45 degrees with the vertical line
potable water - Answer ✓✓water that is safe to drink, use in culinary and domestic
purposes
a stack is - Answer ✓✓a vertical pipe
branch - Answer ✓✓Horizontal pipe
, MAINE JOURNEYMAN'S PLUMBING
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
Yoke vent - Answer ✓✓A pipe connecting upward from a soil or waste stack to a vent
stack for the purpose of preventing pressure changes in the stack
PEX Pipe - Answer ✓✓Polyethylene cross link
Wet Vent - Answer ✓✓A vent which also serves as a drain
invert - Answer ✓✓The lowest point of the inside of a drain, pipe, channel, or other
liquid-carrying conduit.
Trap Primer - Answer ✓✓A device and system of piping that maintains a water seal in
a remote trap.
Static Pressure - Answer ✓✓the pressure existing without any flow motion.
Main Vent (Vent Stack) - Answer ✓✓principal artery of the venting system
BRAZED JOINT - Answer ✓✓any joint obtained by joining of metal parts with alloys
which melt at temperatures higher than 840F, but lower than the melting temperature of
the parts to be joined.
soldered joint - Answer ✓✓any pipe joint obtained by joining metal parts with metallic
mixtures or alloys which melt at a temperature below 800F and above 300F
BUILDING SUBDRAIN - Answer ✓✓that portion of an underground system, which
cannot drain by gravity into the building sewer
Rain Leader - Answer ✓✓Pipe used to carry rainwater from the roof to the ground and
away from the building. Rain leaders can be enclosed within the building thermal
envelope and daylight only when discharging from the building or can be surface-
mounted on the exterior of the building.
Water Hammer Arrestor - Answer ✓✓a device that absorbs the hydraulic shock caused
by the sudden stopping of water flow, usually installed near clothes washing machine
and dishwasher water supply connections.
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
When Plumbing code conflicts with mechanical code, which shall prevail? - Answer
✓✓Plumbing code
It is the duty of whom to notify the AHJ of work ready for inspection? - Answer ✓✓The
person doing the work
What is AHJ? - Answer ✓✓Authority Having Jurisdiction
How much notice must you give the AHJ prior to inspection? - Answer ✓✓24 Hours
hot water for public use lavatories shall be limited to what temp:
A) 105
B) 120
C)115
D)110 - Answer ✓✓120 F
Is the plumbing code minimum or maximum standards? - Answer ✓✓Minimum
requirements and standards
What is considered a bathroom? - Answer ✓✓A room with a shower or bathtub
that part of the lowest horizontal piping of a drainage system which receives the
discharge from soil, waste and other drainage pipes inside the walls of the building and
conveys it to the building sewer
A) Building subdrain
B)soil stack
C)Building Sewer
D)Building drain - Answer ✓✓Building drain
A vertical vent that is a continuation of the drain to which it connects
A) Continuous vent
B) Yoke Vent
C) Up Vent
D) Standard Vent - Answer ✓✓Continuous vent
a specially designed system of waste piping embodying the horizontal wet venting of
one or more sinks 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
, MAINE JOURNEYMAN'S PLUMBING
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
A) Combination Waste and Vent system
B) Drain air system
C) Oversized drain
D) Flat Drain - Answer ✓✓Combination Waste and vent system
Where parallel vertical stacks are installed, the connection for the soil stacks shall be
via:
A) Backflow tee
B) Typical Wye
C) Drain Tee
D) Yoke Vent - Answer ✓✓Yoke vent
You are looking at a 16 foot long cylinder that is 4 feet wide. If it is entirely full, how
much water is in the cylinder?
A) 200.96
B)256
C) 300 - Answer ✓✓200.96
Volume is (Pie X R^2)xHeight
(3.14x2^2) X 16 =200.96
The Volume of the cylinder is 200.96 cubic feet, many gallons of water is that?
A) 1503
B) 1600
C) 1000
D) 1263.72 - Answer ✓✓7.48 gallons per cubic foot
(200.96 X 7.48) = 1503.2 gallons
Developed Length - Answer ✓✓The length along the center of the pipe and fitting
Vertical pipe - Answer ✓✓any pipe or fitting installed in a vertical position or which
forms an angle of not more than 45 degrees with the vertical line
potable water - Answer ✓✓water that is safe to drink, use in culinary and domestic
purposes
a stack is - Answer ✓✓a vertical pipe
branch - Answer ✓✓Horizontal pipe
, MAINE JOURNEYMAN'S PLUMBING
EXAM ACTUAL EXAM QUESTIONS
AND ANSWERS (A+ GUIDE
SOLUTION) NEWEST 2025/2026
Yoke vent - Answer ✓✓A pipe connecting upward from a soil or waste stack to a vent
stack for the purpose of preventing pressure changes in the stack
PEX Pipe - Answer ✓✓Polyethylene cross link
Wet Vent - Answer ✓✓A vent which also serves as a drain
invert - Answer ✓✓The lowest point of the inside of a drain, pipe, channel, or other
liquid-carrying conduit.
Trap Primer - Answer ✓✓A device and system of piping that maintains a water seal in
a remote trap.
Static Pressure - Answer ✓✓the pressure existing without any flow motion.
Main Vent (Vent Stack) - Answer ✓✓principal artery of the venting system
BRAZED JOINT - Answer ✓✓any joint obtained by joining of metal parts with alloys
which melt at temperatures higher than 840F, but lower than the melting temperature of
the parts to be joined.
soldered joint - Answer ✓✓any pipe joint obtained by joining metal parts with metallic
mixtures or alloys which melt at a temperature below 800F and above 300F
BUILDING SUBDRAIN - Answer ✓✓that portion of an underground system, which
cannot drain by gravity into the building sewer
Rain Leader - Answer ✓✓Pipe used to carry rainwater from the roof to the ground and
away from the building. Rain leaders can be enclosed within the building thermal
envelope and daylight only when discharging from the building or can be surface-
mounted on the exterior of the building.
Water Hammer Arrestor - Answer ✓✓a device that absorbs the hydraulic shock caused
by the sudden stopping of water flow, usually installed near clothes washing machine
and dishwasher water supply connections.
