TEXAS JOURNEYMAN PLUMBER EXAM - (100 QUESTIONS) LATEST UPDATED ACTUAL
EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas State Board of Plumbing Examiners (TSBPE)
CANDIDATE INFORMATION
Name: ___________________________________________
Candidate ID: _____________________________________
Date: ____________________________________________
Examination Centre: ________________________________
This examination assesses the competency of candidates seeking licensure as a Journeyman
Plumber in Texas. It evaluates knowledge of plumbing codes, system design, installation
practices, safety procedures, and troubleshooting techniques in both residential and
commercial environments. Candidates are expected to demonstrate applied understanding
of the Uniform Plumbing Code (UPC) and Texas-specific amendments, as well as practical
problem-solving skills in real-world scenarios. This assessment reflects industry standards
and ensures that successful candidates can perform plumbing work safely, effectively, and in
compliance with regulatory requirements.
,Core Competency Areas:
Plumbing Codes and Regulations (UPC & Texas Amendments)
Water Supply and Distribution Systems
Drainage, Waste, and Vent (DWV) Systems
Fixtures and Appliances Installation
Gas Piping Systems
Safety and OSHA Compliance
Blueprint Reading and System Design
Candidate Instructions:
You are allotted 4 hours to complete approximately 100 multiple-choice questions. This
booklet contains the first 30 questions. Read each question carefully and select the best
answer. Calculators are permitted; reference materials may be allowed per testing center
rules. Mark your answers clearly. No electronic devices or unauthorized materials are
allowed. Ensure all responses are transferred correctly if using an answer sheet. Manage your
time effectively. Once completed, remain seated until instructed to submit your materials.
SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED.
,DISCLAIMER
This is an original simulated examination created for educational and preparation
purposes. It is not an official exam and is not affiliated with or endorsed by the Texas State
Board of Plumbing Examiners.
Q1. A plumber installs a horizontal drainage pipe in a residential system. According to
standard code requirements, what is the minimum slope required for a 3-inch pipe?
A. 1/8 inch per foot
B. 1/4 inch per foot
C. 1/2 inch per foot
D. 1 inch per foot
Correct Answer: 🔵 B. 1/4 inch per foot
Explanation: 🟢 A 3-inch horizontal drainage pipe requires a minimum slope of 1/4 inch
per foot to ensure proper flow velocity and prevent clogging. Option A is insufficient for
pipes under 4 inches. Options C and D are excessive and may cause water to outrun solids,
leading to blockages.
, Q2. When installing a vent pipe through a roof, what is the minimum height it must extend
above the roof surface?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Correct Answer: 🔵 B. 12 inches
Explanation: 🟢 Plumbing codes require vent pipes to extend at least 12 inches above the
roof to prevent blockage from debris or snow. Option A is too low, while C and D exceed
minimum requirements but are not mandatory.
Q3. A backflow prevention device is required in which scenario?
A. Installing a kitchen sink
B. Connecting a potable water supply to irrigation
C. Installing a bathroom faucet
D. Replacing a toilet flange
Correct Answer: 🔵 B. Connecting a potable water supply to irrigation
Explanation: 🟢 Irrigation systems can introduce contaminants into potable water,
EXAM QUESTIONS AND COMPLETE SOLUTIONS | VERIFIED ANSWERS
Examiner/Administrator: Texas State Board of Plumbing Examiners (TSBPE)
CANDIDATE INFORMATION
Name: ___________________________________________
Candidate ID: _____________________________________
Date: ____________________________________________
Examination Centre: ________________________________
This examination assesses the competency of candidates seeking licensure as a Journeyman
Plumber in Texas. It evaluates knowledge of plumbing codes, system design, installation
practices, safety procedures, and troubleshooting techniques in both residential and
commercial environments. Candidates are expected to demonstrate applied understanding
of the Uniform Plumbing Code (UPC) and Texas-specific amendments, as well as practical
problem-solving skills in real-world scenarios. This assessment reflects industry standards
and ensures that successful candidates can perform plumbing work safely, effectively, and in
compliance with regulatory requirements.
,Core Competency Areas:
Plumbing Codes and Regulations (UPC & Texas Amendments)
Water Supply and Distribution Systems
Drainage, Waste, and Vent (DWV) Systems
Fixtures and Appliances Installation
Gas Piping Systems
Safety and OSHA Compliance
Blueprint Reading and System Design
Candidate Instructions:
You are allotted 4 hours to complete approximately 100 multiple-choice questions. This
booklet contains the first 30 questions. Read each question carefully and select the best
answer. Calculators are permitted; reference materials may be allowed per testing center
rules. Mark your answers clearly. No electronic devices or unauthorized materials are
allowed. Ensure all responses are transferred correctly if using an answer sheet. Manage your
time effectively. Once completed, remain seated until instructed to submit your materials.
SECURITY NOTICE
DO NOT OPEN THIS BOOKLET UNTIL INSTRUCTED.
,DISCLAIMER
This is an original simulated examination created for educational and preparation
purposes. It is not an official exam and is not affiliated with or endorsed by the Texas State
Board of Plumbing Examiners.
Q1. A plumber installs a horizontal drainage pipe in a residential system. According to
standard code requirements, what is the minimum slope required for a 3-inch pipe?
A. 1/8 inch per foot
B. 1/4 inch per foot
C. 1/2 inch per foot
D. 1 inch per foot
Correct Answer: 🔵 B. 1/4 inch per foot
Explanation: 🟢 A 3-inch horizontal drainage pipe requires a minimum slope of 1/4 inch
per foot to ensure proper flow velocity and prevent clogging. Option A is insufficient for
pipes under 4 inches. Options C and D are excessive and may cause water to outrun solids,
leading to blockages.
, Q2. When installing a vent pipe through a roof, what is the minimum height it must extend
above the roof surface?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Correct Answer: 🔵 B. 12 inches
Explanation: 🟢 Plumbing codes require vent pipes to extend at least 12 inches above the
roof to prevent blockage from debris or snow. Option A is too low, while C and D exceed
minimum requirements but are not mandatory.
Q3. A backflow prevention device is required in which scenario?
A. Installing a kitchen sink
B. Connecting a potable water supply to irrigation
C. Installing a bathroom faucet
D. Replacing a toilet flange
Correct Answer: 🔵 B. Connecting a potable water supply to irrigation
Explanation: 🟢 Irrigation systems can introduce contaminants into potable water,
