1. 3D component modeling and project files
61% of the examIdentify weak areas and improve with focused review.
Start PracticingPass your ACA certification
Free ACA Practice Test
Pass the Autodesk Certified Associate in CAD for Mechanical Design exam with confidence.
Start with a free ACA practice test and build exam-ready confidence for the Autodesk Certified Associate in CAD for Mechanical Design exam.
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1000+ACA Questions
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Everything your ACA 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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Practice the ACA exam by domain
2. 3D assembly modeling and management
24% of the examIdentify weak areas and improve with focused review.
Start Practicing3. Technical detailed drawing creation
15% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the ACA exam, the questions, pricing, the free trial, and how this fits your prep.
The ACA exam spans 3 domains - 3D component modeling and project files (61%), 3D assembly modeling and management (24%), and Technical detailed drawing creation (15%). Every practice question maps to one of them, so you train on exactly what's tested.
The Autodesk Certified Associate in CAD for Mechanical Design (ACA) exam has 60 questions and is completed in 2 hours. 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 ACA exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. ACA Exam Prep is an independent study resource for Autodesk Certified Associate in CAD for Mechanical Design (ACA). 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 3 ACA domains - 3D component modeling and project files (61%), 3D assembly modeling and management (24%), and Technical detailed drawing creation (15%). 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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Flip, grade yourself, and repeat the tough ones until they stick.
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A focused 48-hour cram for candidates sitting the exam in the next day or two.
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For candidates with 2-6 weeks before exam day - the complete, confident way to prepare.
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Trusted by ACA candidates
Real feedback from ACA candidates on Reddit.
"put this off for like 3 weeks then panicked. the assembly modeling practice questions saved me, i genuinely didnt know how joints and motion links worked together until i got a bunch wrong and reviewed why. passed, barely studied the drawing stuff and it still showed up less."
"honestly wasnt sure a website could actually prep you for a hands on skill but the mock exams felt close enough to the real question style that nothing on test day surprised me. cadprep.com is basically what i tell people now when they ask how i studied."
"component modeling is most of the exam so thats where i spent most my time. the mistake review after each set helped alot, kept making the same sketch constraint error and didnt even realize it til it was pointed out a few times. passed first try."