About USPS 955 Exam Prep
An independent practice platform for the USPS Maintenance Exam 955 (USPS 955) exam - real questions across every exam domain, each with a plain-language explanation.
What's on the USPS 955 exam
The USPS Maintenance Exam 955 (USPS 955) exam is organized into 9 knowledge domains. It has 128 questions and is completed in 1 hour 40 minutes. Here is what it covers:
- AC/DC Theory, Power Distribution, and Electrical Maintenance
- Motors, Control Circuits, Schematics, and Print Reading
- Digital Electronics, Power Supplies, Computers, and Test Instruments
- Hydraulics and Pneumatics
- Pumps, Piping and Combustion
- Power Transmission, Lubrication, Mechanical Maintenance, and Shop Machines, Tools and Equipment
- Welding and Rigging
- Spatial Relations - Matching Parts and Figures
- Spatial Relations - Spatial Visualization
Every practice question on this site is organized across these 9 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.