1. Administrative
5% of the examIdentify weak areas and improve with focused review.
Start PracticingPass your R3 certification
Free R3 Practice Test
Pass the R3 exam with confidence.
Start with a free R3 practice test and build exam-ready confidence for the R3 exam.
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1000+R3 Questions
8Exam Domains
10Free Questions
2026Updated
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Everything your R3 certification prep needs
Practice expert-vetted questions, find your weak domains, and turn every mistake into a focused review plan.
Expert-vetted questions
Every question is reviewed by an experienced R3 professional for clarity, accuracy and practical exam relevance.
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Domain analytics show which parts of the exam blueprint are holding you back.
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Missed questions become a review list, so nervous guessing turns into focused repetition.
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Study by domain
Practice the R3 exam by domain
2. Site
10% of the examIdentify weak areas and improve with focused review.
Start Practicing3. Architectural and Life Safety
25% of the examIdentify weak areas and improve with focused review.
Start Practicing4. Structural
25% of the examIdentify weak areas and improve with focused review.
Start Practicing5. Energy Efficiency
5% of the examIdentify weak areas and improve with focused review.
Start Practicing6. Mechanical
10% of the examIdentify weak areas and improve with focused review.
Start Practicing7. Plumbing
10% of the examIdentify weak areas and improve with focused review.
Start Practicing8. Electrical
10% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the R3 exam, the questions, pricing, the free trial, and how this fits your prep.
The R3 exam spans 8 domains - Administrative (5%), Site (10%), Architectural and Life Safety (25%), Structural (25%), Energy Efficiency (5%), Mechanical (10%), Plumbing (10%), and Electrical (10%). Every practice question maps to one of them, so you train on exactly what's tested.
No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the R3 exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. R3 Exam Prep is an independent study resource for R3 (R3). 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 8 R3 domains - Administrative (5%), Site (10%), Architectural and Life Safety (25%), Structural (25%), Energy Efficiency (5%), Mechanical (10%), Plumbing (10%), and Electrical (10%). 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 Polar, 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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Drill a single domain, run a mixed session, or sit a full timed exam simulation - pick the mode that fits your study window.
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Quick Practice
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A full-length timed exam that mirrors the real R3 test, balanced across every domain.
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Flashcards
Flip, grade yourself, and repeat the tough ones until they stick.
Train with flashcards →Review Mistakes
Re-drill the questions you got wrong.
Review now →Review Weak Domains
Drill your lowest-scoring domains first.
Find weak spots →All Questions
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48-hour access
A focused 48-hour cram for candidates sitting the exam in the next day or two.
- Full 1,000+ question bank
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- Multiple-choice & true/false practice
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Fast Track
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7-day access
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Just $3.09/day · best long-term value
★ 2.6× more likely to pass first time
6-week access
For candidates with 2-6 weeks before exam day - the complete, confident way to prepare.
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Trusted by R3 candidates
Real feedback from R3 candidates on Reddit.
"honestly wasnt expecting much but the practice questions for architectural and life safety were really specific. not just 'know the code' stuff, actual scenario questions that felt like the real thing. passed first try. quiet relief is the right way to put it."
"i put off studying for way too long and ended up cramming the last two weeks. found r3exam.com somewhere in this sub i think. the mock exams were what saved me tbh, specially the structural sections which i kept bombing until i could actually see where i was losing points and go back to those."
"used this site for the mechanical and plumbing sections. definately weaker areas for me. the breakdown after each practice set helped more than just redoing questions blindly. passed."