1. Refrigeration
Key exam domainIdentify weak areas and improve with focused review.
Start PracticingPass your AZ-ACR certification
Free AZ-ACR Practice Test
Pass the Arizona R-39R/C-39 (CR-39) Air Conditioning and Refrigeration (Residential/Commercial) Examination exam with confidence.
Start with a free AZ-ACR practice test and build exam-ready confidence for the Arizona R-39R/C-39 (CR-39) Air Conditioning and Refrigeration (Residential/Commercial) Examination exam.
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1000+AZ-ACR Questions
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Everything your AZ-ACR certification prep needs
Practice expert-vetted questions, find your weak domains, and turn every mistake into a focused review plan.
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Domain analytics show which parts of the exam blueprint are holding you back.
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Study by domain
Practice the AZ-ACR exam by domain
2. Air Conditioning
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing3. Warm Air Heating
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing4. Controls and Motors
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing5. Boilers
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing6. Ventilation
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing7. Evaporative Coolers
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing8. Fuel Piping Systems
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing9. Water Piping Systems
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing10. Steam, Hot, Chilled, and Condensing Water
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing11. Testing, Balancing, and Inspections
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing12. Sizing and Estimating
Key exam domainIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the AZ-ACR exam, the questions, pricing, the free trial, and how this fits your prep.
The AZ-ACR exam spans 12 domains - Refrigeration, Air Conditioning, Warm Air Heating, Controls and Motors, Boilers, Ventilation, Evaporative Coolers, Fuel Piping Systems, Water Piping Systems, Steam, Hot, Chilled, and Condensing Water, Testing, Balancing, and Inspections, and Sizing and Estimating. Every practice question maps to one of them, so you train on exactly what's tested.
The Arizona R-39R/C-39 (CR-39) Air Conditioning and Refrigeration (Residential/Commercial) Examination (AZ-ACR) exam has 80 questions and is completed in 3 hours 30 minutes. Our timed practice tests mirror that length and pacing, so exam day feels familiar.
No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the AZ-ACR exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. AZ-ACR Exam Prep is an independent study resource for Arizona R-39R/C-39 (CR-39) Air Conditioning and Refrigeration (Residential/Commercial) Examination (AZ-ACR). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.
Every paid plan unlocks the full bank of 1,000+ practice questions covering all 12 AZ-ACR domains - Refrigeration, Air Conditioning, Warm Air Heating, Controls and Motors, Boilers, Ventilation, Evaporative Coolers, Fuel Piping Systems, Water Piping Systems, Steam, Hot, Chilled, and Condensing Water, Testing, Balancing, and Inspections, and Sizing and Estimating. You can practice the whole bank, filter by domain, or run a timed, domain-balanced exam simulation.
Yes - the bank is maintained against the current exam outline, and questions are revised when the exam changes.
No honest practice platform can guarantee a pass. What realistic practice does is show you - before exam day - exactly which domains are weak, and give you the repetitions to fix them. That's the difference between hoping you're ready and knowing where you stand.
Yes. You get 10 free sample questions with instant feedback - no credit card and no account required.
The free sample shows you the question quality. Paid plans unlock the full 1,000+ question bank, exam-style practice modes, mistake review, and - on Fast Track and Pass Confidence - progress analytics that show your readiness by domain.
No. Every plan is a single one-time payment for a fixed access window - 48 hours, 7 days, or 6 weeks. There is no auto-renewal and no recurring billing.
Match it to your exam date: Final Review (2 days) for an exam in the next day or two, Fast Track (7 days) for an exam this week, Pass Confidence (6 weeks) for a structured run-up.
For most countries, the price you see is exactly what you pay - tax is already included. Where local law requires it to be added separately, it's shown clearly at checkout before you pay, so there are never any surprise fees.
Access is instant after payment and runs for your plan's full window from that moment. When the window ends, your local progress stays on your device - you can buy another window any time and pick up where you left off.
Yes - the whole platform is mobile-first: practice, mistake review, and analytics all work on any phone, tablet, or laptop with a browser. Nothing to install.
Every answer feeds your per-domain accuracy, readiness score, and weak-area list. Instead of re-reading everything, you drill the domains that are actually costing you points - that's what moves a score in days, not months.
Chat with us any time - the 24/7 support chat in the corner of every page gives instant answers about plans, access, and billing. Prefer email? The contact link is in the footer. Payments are processed securely by Stripe, and active customers can download an invoice from their profile page.
Make sure you're signed in with the same email you used at checkout - access activates within a minute of payment. If it still doesn't appear, email us from the contact link in the footer and it'll be sorted out.
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Trusted by AZ-ACR candidates
Real feedback from AZ-ACR candidates on Reddit.
"didnt study for like 3 weeks then panicked. ran thru the practice questions on azacrexam a bunch and the refrigeration section finally clicked. passed first try, wasnt expecting that honestly."
"i was pretty behind on warm air heating stuff, kept mixing up the sizing questions. the mistake review feature showed me exactly where i kept messing up so i wasnt just guessing what to restudy. helped alot more than i thought it would."
"took a mock exam the night before just to see where i stood. missed a few on boilers but everything else felt familiar from the practice sets. passed with room to spare, no drama."