North Carolina HVAC Exam Prep: 1,500 Practice Questions for the H-1, H-2, and H-3 Exams
PassProfessor’s North Carolina HVAC Exam Prep is built for candidates for North Carolina’s heating-group contractor licenses — H-1 (hydronic and steam heating), H-2 (ducted warm-air heating, air conditioning over 15 tons, and commercial refrigeration), and H-3 (air conditioning and warm-air heating up to 15 tons) — tested by the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors. The bank holds 1,500 original practice questions: a 1,250-question HVAC core plus 250 North Carolina questions on North Carolina law and the 2018 North Carolina codes.
Every question is an original item written for this program, and every question comes with an explanation for every answer: why the keyed answer is right and why each other option is wrong, grounded in the cited code, standard, manual, or rule.
The exam, in facts
- Each North Carolina license exam has two parts — a Technical part and a Business and Law part — administered by PSI for the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors. Both parts are open book.
- The Technical part allows 4 hours. The Business and Law part allows 1.5 hours.
- Passing is a grade of 70 (of 100 points) on EACH part, under the Board’s rule at 21 NCAC 50 .0305. A candidate who passes one part and fails the other retakes only the failed part.
- The exams are built on the 2018 North Carolina Mechanical Code and the 2018 North Carolina Fuel Gas Code.
- PSI and the Board do not publish the exams’ question counts, and this program does not claim one.
- The H-1 license also covers the hydronic and steam work tested in the second part of its Technical exam; H-2 and H-3 candidates take the first Technical part.
How the practice program works
The full practice exam draws 100 practice questions across all 19 topics in a 240-minute sitting that mirrors the Technical part’s 4 hours, and every attempt draws a fresh assortment, so no two practice exams are the same.
Each of the bank’s 19 topics has its own drill, so you can drill North Carolina law on its own or work the trade topics one at a time:
- Refrigeration Principles & Components — 114 questions
- Refrigerants, Recovery & Handling — 55 questions
- Cooling Systems: Service, Diagnostics & Repair — 91 questions
- Heating Systems — 212 questions
- Air Distribution, Duct Design & Airflow — 114 questions
- Controls & Electrical for HVAC — 110 questions
- Piping, Brazing & Gas Piping — 65 questions
- Ventilation, Venting, Combustion Air & IAQ — 87 questions
- Load Calculation & System Design — 41 questions
- Safety, Testing & Code Practice — 85 questions
- Commercial Refrigeration Systems — 41 questions
- Equipment Installation & Commissioning — 75 questions
- Hydronics & Boilers — 35 questions
- Business & Law Practice — 50 questions
- Plan Reading & Construction Documents — 25 questions
- Packaged & Manufactured Systems — 50 questions
- North Carolina Laws & Rules — 155 questions
- North Carolina Mechanical & Fuel Gas Code — 75 questions
- North Carolina Business & Law — 20 questions
Try the free 12-question sample first — it uses a fixed set of questions so you can see exactly how explanations read before you buy.
Our practice exam is scored against a 70% practice benchmark, set to mirror the Board’s published standard: a grade of 70 (of 100 points) on each part of the real exam. PRACTICE BENCHMARK ONLY — your score here is a study signal, not a result on the real exam.
Questions
How many questions are on the North Carolina exam?
PSI and the Board do not publish the count, so we do not state one. What is published: two parts (Technical and Business and Law), both open book, 4 hours and 1.5 hours respectively, and a required grade of 70 on each part.
What is the difference between H-1, H-2, and H-3?
Scope. H-1 covers heating systems including hydronic and steam work. H-2 covers ducted warm-air heating, air conditioning over 15 tons, and commercial refrigeration. H-3 covers air conditioning and warm-air heating up to 15 tons. One bank serves all three because they share the trade core and the first Technical part.
Are these real exam questions?
No. Every question is original to PassProfessor, written from the published exam content areas and the cited references. Nothing here is copied or paraphrased from a licensing exam or a competitor’s bank.
What does the 70% benchmark mean?
Our practice exam is scored against a 70% practice benchmark, set to mirror the Board’s published standard: a grade of 70 (of 100 points) on each part of the real exam. PRACTICE BENCHMARK ONLY — your score here is a study signal, not a result on the real exam.
Enroll: Product: /product/north-carolina-hvac-exam-prep/ — $79 for the full program.