1
Journeyman and Master Plumbing Exam
Question Bank 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+
What degree is used for isometric drawings? - 🧠 ANSWER ✔✔60 degrees
What is the recommended minimum of minutes for chlorine water management? -
🧠 ANSWER ✔✔20-30 minutes
When you need to repair a single handle lavatory faucet, what needs to be
replaced? - 🧠 ANSWER ✔✔O ring
Galvanic corrosion of water supply piping can occur where - 🧠 ANSWER ✔✔steel
pipe is joined to a dissimilar metal pipe
Whenever necessary to make an inspection to enforce any of the provisions of the
Code, an authorized representative may enter the premises - 🧠 ANSWER ✔✔at all
reasonable times
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,2
After completion of work and testing of sewer pipeline, who shall request
inspection? - 🧠 ANSWER ✔✔Supervisor of job at job-site
If the Administrative Authority requests that a new type of material be used on a
project, who pays for the testing of the new material? - 🧠 ANSWER ✔✔Contractor
When plumbing work is inspected and a "notice of correction" is served, how
many days does the contractor have to correct the work? - 🧠 ANSWER ✔✔Within
10 days
What is the vertical distance called that is between the lowest opening of a pipe
fixture or appurtenance that is discharging waste to the overflow level of a fixture?
- 🧠 ANSWER ✔✔Airgap, drainage
A cleanout which has direct access without the necessity of removing any panel or
door is defined to be - 🧠 ANSWER ✔✔readily accessible
Distribution of water from any other source than intended is - 🧠 ANSWER
✔✔backflow
Back-siphonage is defined as - 🧠 ANSWER ✔✔the flowing back of used,
contaminated or polluted water from a plumbing fixture or vessel into a water
supply pipe due to a negative pressure in such pipe
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
,3
The _________________________ is the pipe which carries potable water from a
water meter to a building. - 🧠 ANSWER ✔✔building supply
Backflow is defined as - 🧠 ANSWER ✔✔non-potable water or other liquids
entering a potable water system
Any group of two or more similar adjacent fixtures that discharge into a common
horizontal waste branch is defined as a - 🧠 ANSWER ✔✔battery
Which of the following connects one or more individual vents to a vent stack? - 🧠
ANSWER ✔✔Branch vent
A combination waste and vent system may be installed on a
_______________________ piping system. - 🧠 ANSWER ✔✔horizontal
The minimum level at which a vacuum breaker may be installed above the flood
level rim of the device and service is called - 🧠 ANSWER ✔✔the critical level
The "the critical level" is shown on a backflow prevention device by a
_______________ marking. - 🧠 ANSWER ✔✔C-L or C/L
When a backflow prevention device does not bear a "critical level" marking, which
part of the device constitutes the critical level? - 🧠 ANSWER ✔✔Bottom
What is the Critical Level on a backflow device? - 🧠 ANSWER ✔✔Bottom
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, 4
According to the Uniform Plumbing Code, a "cross connection" is defined as - 🧠
ANSWER ✔✔a connection through which non-potable water may enter a potable
water system.
What is the name for the measurement taken along the centerline of a pipe and
fittings? - 🧠 ANSWER ✔✔Developed length
"Existing work" is defined to be a plumbing system or any part thereof which - 🧠
ANSWER ✔✔has been installed prior to the effective date of the code.
A pipe which makes an angle of not more than 45 degrees with the horizontal is
considered - 🧠 ANSWER ✔✔horizontal
A horizontal pipe is any pipe or fitting which is installed in a horizontal position or
which makes an angle of less than _________ degrees with the horizontal. - 🧠
ANSWER ✔✔45
What statement is true about industrial waste? - 🧠 ANSWER ✔✔It is free of fecal
matter.
The "invert" elevation of a sewer line is the ____________________ of the pipe. -
🧠 ANSWER ✔✔inside bottom
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
Journeyman and Master Plumbing Exam
Question Bank 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+
What degree is used for isometric drawings? - 🧠 ANSWER ✔✔60 degrees
What is the recommended minimum of minutes for chlorine water management? -
🧠 ANSWER ✔✔20-30 minutes
When you need to repair a single handle lavatory faucet, what needs to be
replaced? - 🧠 ANSWER ✔✔O ring
Galvanic corrosion of water supply piping can occur where - 🧠 ANSWER ✔✔steel
pipe is joined to a dissimilar metal pipe
Whenever necessary to make an inspection to enforce any of the provisions of the
Code, an authorized representative may enter the premises - 🧠 ANSWER ✔✔at all
reasonable times
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,2
After completion of work and testing of sewer pipeline, who shall request
inspection? - 🧠 ANSWER ✔✔Supervisor of job at job-site
If the Administrative Authority requests that a new type of material be used on a
project, who pays for the testing of the new material? - 🧠 ANSWER ✔✔Contractor
When plumbing work is inspected and a "notice of correction" is served, how
many days does the contractor have to correct the work? - 🧠 ANSWER ✔✔Within
10 days
What is the vertical distance called that is between the lowest opening of a pipe
fixture or appurtenance that is discharging waste to the overflow level of a fixture?
- 🧠 ANSWER ✔✔Airgap, drainage
A cleanout which has direct access without the necessity of removing any panel or
door is defined to be - 🧠 ANSWER ✔✔readily accessible
Distribution of water from any other source than intended is - 🧠 ANSWER
✔✔backflow
Back-siphonage is defined as - 🧠 ANSWER ✔✔the flowing back of used,
contaminated or polluted water from a plumbing fixture or vessel into a water
supply pipe due to a negative pressure in such pipe
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
,3
The _________________________ is the pipe which carries potable water from a
water meter to a building. - 🧠 ANSWER ✔✔building supply
Backflow is defined as - 🧠 ANSWER ✔✔non-potable water or other liquids
entering a potable water system
Any group of two or more similar adjacent fixtures that discharge into a common
horizontal waste branch is defined as a - 🧠 ANSWER ✔✔battery
Which of the following connects one or more individual vents to a vent stack? - 🧠
ANSWER ✔✔Branch vent
A combination waste and vent system may be installed on a
_______________________ piping system. - 🧠 ANSWER ✔✔horizontal
The minimum level at which a vacuum breaker may be installed above the flood
level rim of the device and service is called - 🧠 ANSWER ✔✔the critical level
The "the critical level" is shown on a backflow prevention device by a
_______________ marking. - 🧠 ANSWER ✔✔C-L or C/L
When a backflow prevention device does not bear a "critical level" marking, which
part of the device constitutes the critical level? - 🧠 ANSWER ✔✔Bottom
What is the Critical Level on a backflow device? - 🧠 ANSWER ✔✔Bottom
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, 4
According to the Uniform Plumbing Code, a "cross connection" is defined as - 🧠
ANSWER ✔✔a connection through which non-potable water may enter a potable
water system.
What is the name for the measurement taken along the centerline of a pipe and
fittings? - 🧠 ANSWER ✔✔Developed length
"Existing work" is defined to be a plumbing system or any part thereof which - 🧠
ANSWER ✔✔has been installed prior to the effective date of the code.
A pipe which makes an angle of not more than 45 degrees with the horizontal is
considered - 🧠 ANSWER ✔✔horizontal
A horizontal pipe is any pipe or fitting which is installed in a horizontal position or
which makes an angle of less than _________ degrees with the horizontal. - 🧠
ANSWER ✔✔45
What statement is true about industrial waste? - 🧠 ANSWER ✔✔It is free of fecal
matter.
The "invert" elevation of a sewer line is the ____________________ of the pipe. -
🧠 ANSWER ✔✔inside bottom
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
