1. Plumbing Fundamentals and Safety
Key exam domainIdentify weak areas and improve with focused review.
Start PracticingPass your MD-MP certification
Free MD-MP Practice Test
Pass the Maryland Master Plumber License Exam exam with confidence.
Start with a free MD-MP practice test and build exam-ready confidence for the Maryland Master Plumber License Exam exam.
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1000+MD-MP Questions
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What you get
Everything your MD-MP 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 MD-MP professional for clarity, accuracy and practical exam relevance.
See what to study next
Domain analytics show which parts of the exam blueprint are holding you back.
Turn mistakes into confidence
Missed questions become a review list, so nervous guessing turns into focused repetition.
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Track your real exam readiness, weak domains, and quiz history with Fast Track and Pass Confidence.
Study by domain
Practice the MD-MP exam by domain
2. Materials, Uses, and Specifications
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing3. Traps, Interceptors, and Backwater Valves
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing4. Plumbing Fixtures, Fixture Fittings, and Plumbing Appliances
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing5. Water Supply Systems
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing6. Backflow Prevention
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing7. Drain, Waste, and Vent Systems
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing8. Special Topics
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing9. Gas Appliances and Piping
Key exam domainIdentify weak areas and improve with focused review.
Start Practicing10. Plumbing Mathematics
Key exam domainIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the MD-MP exam, the questions, pricing, the free trial, and how this fits your prep.
The MD-MP exam spans 10 domains - Plumbing Fundamentals and Safety, Materials, Uses, and Specifications, Traps, Interceptors, and Backwater Valves, Plumbing Fixtures, Fixture Fittings, and Plumbing Appliances, Water Supply Systems, Backflow Prevention, Drain, Waste, and Vent Systems, Special Topics, Gas Appliances and Piping, and Plumbing Mathematics. Every practice question maps to one of them, so you train on exactly what's tested.
The Maryland Master Plumber License Exam (MD-MP) exam has 100 questions and is completed in 4 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 MD-MP exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. MD-MP Exam Prep is an independent study resource for Maryland Master Plumber License Exam (MD-MP). 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 10 MD-MP domains - Plumbing Fundamentals and Safety, Materials, Uses, and Specifications, Traps, Interceptors, and Backwater Valves, Plumbing Fixtures, Fixture Fittings, and Plumbing Appliances, Water Supply Systems, Backflow Prevention, Drain, Waste, and Vent Systems, Special Topics, Gas Appliances and Piping, and Plumbing Mathematics. 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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Drill a single domain, run a mixed session, or sit a full timed exam simulation - pick the mode that fits your study window.
Study by domain
Focus on one MD-MP domain at a time - pick it here, then choose a mode.
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Quick Practice
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Start quick practice →Domain Practice
Drill the domain selected above and close the gaps where they matter most.
Practice this domain →Exam Simulation
A full-length timed exam that mirrors the real MD-MP 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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A focused 48-hour cram for candidates sitting the exam in the next day or two.
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- All 10 MD-MP domains
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- 48 hours of unlimited practice
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Fast Track
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7-day access
A focused one-week study push with full progress analytics.
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- Everything in Final Review
- Full-length timed exam simulation
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For candidates with 2-6 weeks before exam day - the complete, confident way to prepare.
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Your exam date helps pace your prep. It is saved to your account and visible only to you.
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Track your mastery across all MD-MP domains
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Trusted by MD-MP candidates
Real feedback from MD-MP candidates on Reddit.
"I was nervous about the MD-MP exam until I found this platform. The practice questions mirror the real exam style, and after five weeks of consistent prep, I passed on my first attempt with confidence."
"The analytics dashboard was a turning point for my MD-MP prep. It showed I was weakest in Plumbing Fundamentals and Safety and Materials, Uses, and Specifications, so I spent my final two weeks targeting those areas. Smart studying beats more studying every time."
"Between work and family, I had limited study time for my MD-MP exam. The structured plan kept me on track with focused 30-minute sessions, and the mistake review feature made sure I never repeated the same errors. Passed comfortably."