100+ Free TX Plumber Practice Questions
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Under Texas's adoption of the IPC, what is the minimum size drain pipe permitted for a water closet?
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Key Facts: TX Plumber Exam
70%
Passing Score
Texas State Board of Plumbing Examiners (TSBPE)
100
Questions
2 hours written + 4 hours practical
$40
Exam Fee
Pearson VUE
IPC / UPC
Code
Texas State Board of Plumbing Examiners (TSBPE)
Texas uses a unique two-part exam: a 100-question written test (2 hours, Pearson VUE) plus a 6-station practical exam (4 hours). The written portion requires 70% to pass. Texas uses the IPC statewide, but Austin, Houston, and San Antonio have adopted the UPC. The exam fee is just $40, significantly lower than most states.
Sample TX Plumber Practice Questions
Try these sample questions to test your TX Plumber exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Under Texas's adoption of the IPC, what is the minimum size drain pipe permitted for a water closet?
2What is the minimum slope for a 4-inch horizontal drainage pipe in Texas?
3What is the DFU value for a 1.6 GPF water closet in Texas?
4What backflow preventer is required for high-hazard cross-connections in Texas?
5What is the minimum trap seal depth in Texas?
6What is the minimum vent pipe size in Texas?
7What is the maximum static water pressure in Texas?
8When is a cleanout required on horizontal drainage in Texas?
9What device must be on every water heater in Texas?
10What is the max shower/bathtub delivery temperature in Texas?
About the TX Plumber Exam
Texas-specific journeyman plumber exam with written (100q) and practical (6 stations) components based on IPC statewide and UPC in Austin/Houston/San Antonio
Questions
100 scored questions
Time Limit
2 hours written + 4 hours practical
Passing Score
70%
Exam Fee
$40 (Texas State Board of Plumbing Examiners (TSBPE) / Pearson VUE)
TX Plumber Exam Content Outline
Drainage Systems & Pipe Sizing
Drain sizing, fixture units (DFU), slope requirements, cleanouts, building drain and sewer sizing per IPC / UPC
Water Supply & Distribution
Pipe sizing, backflow prevention, pressure regulation, cross-connection control, and water service requirements
Venting Systems
Vent sizing, wet venting, air admittance valves, vent termination, circuit venting, and combination waste and vent
Fixtures & Appliances
Fixture installation, clearances, water heaters, accessible fixtures, and commercial fixture requirements
Gas Piping
Gas pipe sizing, appliance venting, pressure testing, BTU calculations, CSST bonding, and combustion air
Code Administration & Special Systems
Permits, inspections, plan review, Texas state amendments, medical gas, grease interceptors, and storm drainage
How to Pass the TX Plumber Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: 2 hours written + 4 hours practical
- Exam fee: $40
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
TX Plumber Study Tips from Top Performers
Frequently Asked Questions
What plumbing code does Texas use?
Texas uses the IPC statewide with UPC in Austin/Houston/San Antonio for its plumbing licensing exam. Candidates should study the current adopted edition with any state-specific amendments. Note: Austin, Houston, and San Antonio use the UPC instead of the statewide IPC.
Who administers the Texas plumber exam?
The exam is administered by Pearson VUE on behalf of the Texas State Board of Plumbing Examiners (TSBPE). Register through Pearson VUE after your application is approved.
What is the passing score?
Texas requires 70% to pass the journeyman plumber exam. The exam has 100 questions with a 2 hours written + 4 hours practical time limit.
Is the exam open book?
Most Pearson VUE-administered plumbing exams allow a bound copy of the adopted plumbing code. No loose pages, handwritten notes, or electronic devices are permitted. Check current exam policies before your test date.