About C-304 Exam Prep
An independent practice platform for the Pneumatic Troubleshooting 1 (C-304) exam - real questions across every exam domain, each with a plain-language explanation.
What's on the C-304 exam
The Pneumatic Troubleshooting 1 (C-304) exam is organized into 5 knowledge domains. Here is what it covers:
- Troubleshooting safety rules for electro-pneumatic PLC-controlled systems
- System-level troubleshooting of electro-pneumatic PLC-controlled systems
- Component testing to diagnose and remedy faults
- Using digital multimeters and status indicators for troubleshooting
- Troubleshooting components: filters, regulators, lubricators, solenoid-operated directional control valves, flow control valves, vacuum generators, vacuum cups, vacuum switches, quick exhaust valves, limit switches, electronic sensors, PLC I/O modules, check valves, cylinders, and motors
Every practice question on this site is organized across these 5 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.