APG study resources · Projects

Parts & Project Planning Practice

Practice fitment checks, inspection, budgeting and responsible buying or selling. 20 original APG questions, short lessons and answer explanations.

Independent, unofficial learning practice. This is not an official exam, complete training course or certificate. Follow current local requirements and manufacturer instructions, and use qualified instruction for hands-on work.

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Confirm compatibility

Match model, year, application, part numbers and relevant dimensions. Ask for clear photos and verify important details with manufacturer information.

Plan the complete repair

Include related parts, fluids, tools and verification in your budget. Describe used parts honestly and protect private information in listings.

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1. What is the strongest fitment check before buying a replacement part?
2. Why ask for a part number?
3. What should you do when a listing's compatibility is unclear?
4. What is useful in photos of a used part?
5. How should a seller describe a known defect?
6. What does untested mean in a used-parts listing?
7. Why keep dimensions and units together?
8. What should a repair budget include besides the main part?
9. Why identify the fault before ordering parts?
10. How should you compare two suppliers' prices?
11. What should you check before relying on a return option?
12. What is important when packing a sharp or heavy part?
13. What should you do before shipping a battery or fluid-containing component?
14. Which information should you avoid exposing in a public listing?
15. What is a warning sign during an online transaction?
16. Where is a sensible place to arrange a local exchange?
17. What should you confirm before buying safety-critical used components?
18. Why label removed parts and fasteners during disassembly?
19. What should happen after a project is complete?
20. What should you do when a part cannot be safely reused?