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CP1 practice questions - frequently asked questions

Plain answers about how CP1 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 CP1 exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The CP1 exam spans 5 domains: Fundamentals of Corrosion (30-40%); Equipment and Equipment Management (5-15%); Installation and Field Measurement (40-50%); Industry Practices/Requirements (1-10%); Safety (1-10%). Every practice question on this site is tagged to one of these domains.

The CP1 exam has 100 questions and is completed in 3 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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