CRE logo
Focused certification exam prep
About FAQ View plans
Questions, answered

CRE practice questions - frequently asked questions

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

The CRE exam spans 5 domains: Reliability Fundamentals (19.3% of the exam); Risk Management (16.7% of the exam); Probability and Statistics for Reliability (22.7% of the exam); Reliability Planning, Testing, and Modeling (22.7% of the exam); Lifecycle Reliability (18.7% 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: Probability and Statistics for Reliability 22.7%; Reliability Planning, Testing, and Modeling 22.7%; Reliability Fundamentals 19.3%; Lifecycle Reliability 18.7%; Risk Management 16.7%.

The CRE exam has 165 questions and is completed in 4 hours 18 minutes. Our timed practice mirrors that length and pacing, so exam day feels familiar.

Try 10 free questions View plans