JOURNEYMAN PLUMBING EXAM 2025
QUESTIONS AND ANSWERS
When Plumbing code conflicts with mechanical code, which shall prevail? - ANS Plumbing
code
It is the duty of whom to notify the AHJ of work ready for inspection? - ANS The person doing
the work
What is AHJ? - ANS Authority Having Jurisdiction
How much notice must you give the AHJ prior to inspection? - ANS 24 Hours
hot water for public use lavatories shall be limited to what temp:
A) 105
B) 120
C)115
D)110 - ANS 120 F
Is the plumbing code minimum or maximum standards? - ANS Minimum requirements and
standards
What is considered a bathroom? - ANS A room with a shower or bathtub
1 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
,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 - ANS 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 - ANS 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
A) Combination Waste and Vent system
B) Drain air system
C) Oversized drain
D) Flat Drain - ANS 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 - ANS 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?
2 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
, A) 200.96
B)256
C) 300 - ANS 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 - ANS 7.48 gallons per cubic foot
(200.96 X 7.48) = 1503.2 gallons
Developed Length - ANS The length along the center of the pipe and fitting
Vertical pipe - ANS 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 - ANS water that is safe to drink, use in culinary and domestic purposes
a stack is - ANS a vertical pipe
branch - ANS Horizontal pipe
parts of a trap - ANS
Yoke vent - ANS A pipe connecting upward from a soil or waste stack to a vent stack for the
purpose of preventing pressure changes in the stack
3 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
QUESTIONS AND ANSWERS
When Plumbing code conflicts with mechanical code, which shall prevail? - ANS Plumbing
code
It is the duty of whom to notify the AHJ of work ready for inspection? - ANS The person doing
the work
What is AHJ? - ANS Authority Having Jurisdiction
How much notice must you give the AHJ prior to inspection? - ANS 24 Hours
hot water for public use lavatories shall be limited to what temp:
A) 105
B) 120
C)115
D)110 - ANS 120 F
Is the plumbing code minimum or maximum standards? - ANS Minimum requirements and
standards
What is considered a bathroom? - ANS A room with a shower or bathtub
1 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
,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 - ANS 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 - ANS 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
A) Combination Waste and Vent system
B) Drain air system
C) Oversized drain
D) Flat Drain - ANS 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 - ANS 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?
2 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
, A) 200.96
B)256
C) 300 - ANS 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 - ANS 7.48 gallons per cubic foot
(200.96 X 7.48) = 1503.2 gallons
Developed Length - ANS The length along the center of the pipe and fitting
Vertical pipe - ANS 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 - ANS water that is safe to drink, use in culinary and domestic purposes
a stack is - ANS a vertical pipe
branch - ANS Horizontal pipe
parts of a trap - ANS
Yoke vent - ANS A pipe connecting upward from a soil or waste stack to a vent stack for the
purpose of preventing pressure changes in the stack
3 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
