About MA-JP Exam Prep
An independent practice platform for the Massachusetts Journeyman Plumber License Examination (MA-JP) exam - real questions across every exam domain, each with a plain-language explanation.
What's on the MA-JP exam
The Massachusetts Journeyman Plumber License Examination (MA-JP) exam is organized into 16 knowledge domains. It has 120 questions and is completed in 5 hours 20 minutes. Here is what it covers:
- General Regulations, Inspections, and Permits
- Gas Piping, Equipment, and Appliances
- Venting
- Traps and Cleanouts
- Fixtures, Equipment, and Clearances
- Water Heaters
- Piping, Valves, and Controls
- Water Supply
- Hangers and Supports
- Drain, Waste, and Vent
- Separators, Interceptors, and Grease Traps
- Joints and Connections
- Isometric Analysis
- General Trade Calculations
- Gas Piping
- Gas Venting
Every practice question on this site is organized across these 16 domains, so your study tracks the real exam structure instead of guesswork. As you answer, the per-domain analytics surface the areas still costing you points, so your review goes where it moves your score.
What we believe good exam prep looks like
Realistic practice beats passive reading. Every question is written to mirror the style and difficulty of the real exam, with a clear explanation of why the right answer is right and the others aren't.
Your weak spots should find you. Domain analytics, mistake review, and re-drilling are built in, so study time goes where it moves your score.
Pricing should be simple. One payment for a fixed access window matched to your exam date. No subscription, no auto-renewal, and 10 free questions to try before you spend anything.
Get in touch
Questions, feedback, or something not working? Email support@boardmentor.study - candidate messages are read and answered.