1. Managing Commissioning Projects
18% of the examIdentify weak areas and improve with focused review.
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Free CxA Practice Test
Pass the Certified Commissioning Authority exam with confidence.
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Practice the CxA exam by domain
2. Preparing Commissioning Documentation
19% of the examIdentify weak areas and improve with focused review.
Start Practicing3. Conducting Commissioning Activities
24% of the examIdentify weak areas and improve with focused review.
Start Practicing4. Managing Training Activities
4% of the examIdentify weak areas and improve with focused review.
Start Practicing5. Completing Warranty Phase Activities
5% of the examIdentify weak areas and improve with focused review.
Start Practicing6. Conducting Existing Building Commissioning
23% of the examIdentify weak areas and improve with focused review.
Start Practicing7. Conducting On-Going Commissioning
7% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the CxA exam, the questions, pricing, the free trial, and how this fits your prep.
The CxA exam spans 7 domains - Managing Commissioning Projects (18%), Preparing Commissioning Documentation (19%), Conducting Commissioning Activities (24%), Managing Training Activities (4%), Completing Warranty Phase Activities (5%), Conducting Existing Building Commissioning (23%), and Conducting On-Going Commissioning (7%). Every practice question maps to one of them, so you train on exactly what's tested.
The Certified Commissioning Authority (CxA) exam has 125 questions and is completed in 4 hours 15 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 CxA exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. CxA Exam Prep is an independent study resource for Certified Commissioning Authority (CxA). 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 7 CxA domains - Managing Commissioning Projects (18%), Preparing Commissioning Documentation (19%), Conducting Commissioning Activities (24%), Managing Training Activities (4%), Completing Warranty Phase Activities (5%), Conducting Existing Building Commissioning (23%), and Conducting On-Going Commissioning (7%). 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.
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Trusted by CxA candidates
Real feedback from CxA candidates on Reddit.
"passed last month. almost didnt sit for it, kept pushing it back. the practice questions on cxaexam.com for existing building commissioning saved me, that domain was my weak spot and i wasnt getting it from the guideline alone."
"studied on and off for like two months, definately procrastinated more than i should have. what actually helped was the mistake review feature, it kept showing me i was weak on commissioning documentation specifically. passed on my first try, honestly surprised."
"was skeptical this would help since theres no official prep course but figured id try it anyway. the mock exams matched the pacing of the real thing pretty well, 125 questions is alot to get thru in one sitting and i wasnt ready for that otherwise."