100+ Free SD Plumber Practice Questions
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Under South Dakota's adoption of the UPC, what is the minimum size drain pipe permitted for a water closet?
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Key Facts: SD Plumber Exam
70%
Passing Score
Plumbing Commission
80
Questions
3 hours
~$185
Exam Fee
PSI
UPC
Code
Plumbing Commission
South Dakota's journeyman plumber exam is administered by PSI on behalf of the Plumbing Commission. It has approximately 80 questions with a 3 hours time limit and requires 70% to pass. The exam fee is ~$185. South Dakota uses the UPC as its plumbing code.
Sample SD Plumber Practice Questions
Try these sample questions to test your SD Plumber exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Under South Dakota's adoption of the UPC, 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 South Dakota?
3What is the DFU value for a 1.6 GPF water closet in South Dakota?
4What backflow preventer is required for high-hazard cross-connections in South Dakota?
5What is the minimum trap seal depth in South Dakota?
6What is the minimum vent pipe size in South Dakota?
7What is the maximum static water pressure in South Dakota?
8When is a cleanout required on horizontal drainage in South Dakota?
9What device must be on every water heater in South Dakota?
10What is the max shower/bathtub delivery temperature in South Dakota?
About the SD Plumber Exam
South Dakota-specific journeyman plumber licensing exam based on the UPC covering drainage, water supply, venting, gas piping, and fixtures
Questions
80 scored questions
Time Limit
3 hours
Passing Score
70%
Exam Fee
~$185 (Plumbing Commission / PSI)
SD Plumber Exam Content Outline
Drainage Systems & Pipe Sizing
Drain sizing, fixture units (DFU), slope requirements, cleanouts, building drain and sewer sizing per 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, South Dakota state amendments, medical gas, grease interceptors, and storm drainage
How to Pass the SD Plumber Exam
What You Need to Know
- Passing score: 70%
- Exam length: 80 questions
- Time limit: 3 hours
- Exam fee: ~$185
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
SD Plumber Study Tips from Top Performers
Frequently Asked Questions
What plumbing code does South Dakota use?
South Dakota uses the UPC for its plumbing licensing exam. Candidates should study the current adopted edition with any state-specific amendments.
Who administers the South Dakota plumber exam?
The exam is administered by PSI on behalf of the Plumbing Commission. Register through PSI after your application is approved.
What is the passing score?
South Dakota requires 70% to pass the journeyman plumber exam. The exam has 80 questions with a 3 hours time limit.
Is the exam open book?
Most PSI-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.