Free NC Plumbing Contractor Exam Prep
North Carolina Plumbing Contractor License Exam (Board of Examiners/PSI)
Prepare for the NC Plumbing Contractor exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
Quick Facts
Explore More Plumber License
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
More From This Family
Videos and articles for deeper review.
North Carolina Plumber License License: Complete Roadmap
Follow this path to organize your licensing and exam preparation
IPC Fundamentals & DrainageYou are here
Master IPC-based code structure, DFU calculations, and drainage pipe sizing.
Venting & Water Supply
Focus on vent sizing, wet venting, backflow prevention, and water supply calculations.
Gas Piping & Fixtures
Cover gas pipe sizing, BTUH calculations, fixture installation, and contractor responsibilities.
NC Amendments & Timed Practice
Review NC-specific amendments and complete full timed simulation exams.
Can You Take the NC Plumbing Contractor Exam?
Check if you meet the basic eligibility requirements
NC Plumbing Contractor Quick Facts
Time to Get Licensed
8-12 weeks for most candidates
From start to license in hand
Retake Policy
Contact the NC Board of Examiners for retake requirements and waiting periods.
Total Cost Breakdown
Free NC Plumbing Contractor Prep Tools
Reported exam pass rate: ~50%. Check the exam sponsor for the latest official figure.
100 Practice Questions
NC-specific questions based on the NC State Plumbing Code (IPC-based)
AI-Powered Learning
Get contextual hints and wrong-answer explanations powered by AI
2026 Updated
Aligned to NC's current State Plumbing Code and Board rules
Free Access
All 100 practice questions are free — no account required
What You'll Study
10 chapters covering the exam topics in this guide
Chapter 1: Exam Overview, Administration & General Code Regulations
5 sections
Chapter 2: Fixtures, Faucets, Fixture Fittings & Water Heaters
3 sections
Chapter 3: Water Supply and Distribution & Backflow Prevention
4 sections
Chapter 4: Sanitary Drainage, Indirect Waste, Sumps & Ejectors
5 sections
Chapter 5: Vents and Venting Systems
4 sections
Chapter 6: Traps, Interceptors, Separators & Storm Drainage
3 sections
Chapter 7: Fuel Gas Piping & Appliance Venting (NC IFGC)
4 sections
Chapter 8: Safety, Excavation & Jobsite Practices (OSHA 1926)
3 sections
Chapter 9: NC Contractor Business Law, Project Management & Liens (NASCLA / 21 NCAC 50)
9 sections
Chapter 10: NC Residential Code Plumbing (Class II & Dwelling Practice)
2 sections
NC Plumbing Contractor Exam Details
North Carolina Plumbing Contractor License Exam (Board of Examiners/PSI)
Administered by NC Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors
What's Included
10 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required

Quality Exam Prep Shouldn't Cost Hundreds
I'm Ran Chen, an engineer with 20+ years of coding experience. I passed my Life Insurance license, EA exam, SIE, Series 6, 63, 65, and finally the CFP® exam.
Through all these exams, one thing became clear: exam prep is expensive. But with AI, we can change that. Quality preparation can now be free for everyone.
NC Plumbing Contractor Exam FAQ
More Free Resources
Ready to Start Your Free NC Plumbing Contractor Prep?
Review the study guide, practice key concepts, and use the free tools at your own pace.