HVAC & Refrigeration exam practice tests
EPA 608, NATE and state HVAC licence exams. 340 free questions, each with the reason for the answer.
Practice tests
EPA 608 certification
Every section of the EPA Section 608 technician certification: Core, Type I (small appliances), Type II (high pressure) and Type III (low pressure).
HVAC fundamentals
The refrigeration cycle, airflow, electrical and controls, heating and service practice, as tested on state HVAC licence exams and NATE-style certifications.
HVAC & Refrigeration exams we are building toward
| Exam | Who runs it | Where |
|---|---|---|
| EPA Section 608 (Core, Type I, II, III, Universal) | EPA-approved certifiers | United States |
| EPA Section 609 motor vehicle air conditioning | EPA-approved certifiers | United States |
| HVAC / mechanical journeyman | State and local boards | United States (varies by state) |
| HVAC / mechanical contractor | State boards | United States (varies by state) |
| NATE Ready-to-Work and HVAC Support | NATE | United States |
| NATE air conditioning service and installation | NATE | United States |
| NATE heat pump service and installation | NATE | United States |
| NATE gas heating service and installation | NATE | United States |
| NATE Certified HVAC Professional (CHP-5) | NATE | United States |
| HVAC Excellence employment-ready and professional exams | ESCO Institute | United States |
| R-410A and A2L refrigerant safety | ESCO Institute | United States |
| Refrigeration journeyman / operating engineer | State and local boards | United States (varies by state) |
| RSES CM / CMS | RSES | United States |
| Sheet metal journeyman | State boards, SMART | United States (varies by state) |
| Mechanical inspector (M1, M2) | ICC | United States |
| Building analyst / energy auditor | BPI | United States |
| Testing, adjusting and balancing technician | NEBB, AABC, TABB | United States |
| Refrigeration and air conditioning mechanic (Red Seal 313A) | Canada provinces | Canada |
| F-Gas refrigerant handling (C&G 2079, BESA) | City & Guilds, BESA | United Kingdom |
| EU F-Gas personnel certification Categories I to IV | National certification bodies | European Union |
| Refrigerant handling licence | ARC | Australia |
| Ozone depletion prevention card | HRAI, provinces | Canada |
| 冷凍機械責任者 (第三種, 第二種) written | 高圧ガス保安協会 | Japan |
| 공조냉동기계기능사 written | HRDK (Q-Net) | South Korea |
| Refrigeração e climatização (qualificação SENAI) | SENAI | Brazil |
| ITI Refrigeration and Air Conditioning technician (NCVT theory) | NCVT / DGT | India |
Which exam are you taking?
Tell us the exam and where you are taking it. Requests decide what we write next.
Other trades
Electrician · Plumbing & Gas · CDL & Driving · Contractor · Safety · Apprenticeship & Trade Math · all exams