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PSET practice questions - frequently asked questions

Plain answers about how PSET Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real PSET exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The PSET exam spans 5 domains: Engine Components & Operations Overview (60% of the exam); Tools, Parts & Equipment Identification & Management (10% of the exam); Disassembly Procedures (10% of the exam); Assembly Procedures (10% of the exam); Basic Troubleshooting, Repair, Service & Maintenance Procedures (10% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Engine Components & Operations Overview 60%; Tools, Parts & Equipment Identification & Management 10%; Disassembly Procedures 10%; Assembly Procedures 10%; Basic Troubleshooting, Repair, Service & Maintenance Procedures 10%.

The PSET exam has 100 questions and is completed in 2 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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