CRPE Engineer Registration study guide
CRPE Engineer Registration · Work through your exam, one topic at a time.
The CRPE Engineer Registration is a professional credential for engineers and technical specialists who own reliability outcomes - people writing reliability requirements, planning test and growth programs, running FMECA and fault tree studies, or managing availability and maintenance strategies for complex systems. The exam samples the breadth of the reliability engineering discipline: fundamentals and maintainability concepts, probability and statistics, design for reliability, testing and demonstration, FMECA, fault tree and reliability block diagram analysis, maintainability and availability, growth and life data analysis, risk and human factors, and program management. The CRPE Engineer Registration study guide has 10 sections and about 2,140 words.
01Reliability and Maintainability Fundamentals
This domain tests the definitions and arithmetic that support every later analysis: reliability as a probability over time, failure-rate models, MTBF and MTTF, maintainability, and inherent availability. Reliability is time-dependent; a single probability without a stated mission time is meaningless.
228 words, about 1 min02Reliability Statistics and Probability
This domain tests distribution selection, parameter interpretation, and life measures such as B10 life, with emphasis on Weibull and exponential models. Exponential: constant hazard λ.
205 words, about 1 min03Design for Reliability
This domain tests how reliability is designed in: allocation, prediction, derating, redundancy, tolerance and stress-strength interference, and removal of failure modes. Series reliability R s=∏R i.
233 words, about 1 min04Reliability Testing and Demonstration
This domain tests how tests prove reliability with confidence: success-run tests, MTBF demonstration, sequential testing, and the difference between demonstrated and predicted values. Zero-failure binomial test: n=ln(1-C)/ln(R), where C is confidence and R is the reliability to demonstrate.
205 words, about 1 min05Failure Modes, Effects, and Criticality Analysis
This domain tests bottom-up FMECA: identifying modes, effects, severity, occurrence, detection, RPN, and criticality numbers. FMECA extends FMEA with criticality.
208 words, about 1 min06Fault Tree and Reliability Block Diagram Analysis
This domain tests deductive fault tree analysis (FTA) and inductive reliability block diagrams (RBD), including Boolean reduction and minimal cut sets. FTA starts from a top event and works down through AND/OR gates.
228 words, about 1 min07Maintainability and Availability
This domain tests repair-time distributions, maintainability functions, MTTR, and the different availability measures used in operations and contracts. Maintainability M(t)=P(repair≤t).
176 words, under 1 min08Reliability Growth and Life Data Analysis
This domain tests growth models (Duane, Crow-AMSAA) and life-data fitting: Weibull plots, maximum likelihood, censoring, and B10 life with confidence. Duane: cumulative failure rate C(T)=λT^(-α); a positive slope α on log-log means growth.
192 words, under 1 min09Risk, Safety, and Human Factors
This domain tests risk definition and treatment, hazard analysis methods, safety integrity concepts, and human error in reliability. Risk combines likelihood and consequence.
228 words, about 1 min10Reliability Management and Program Planning
This domain tests how reliability work is planned, allocated, reviewed, and closed out across a program, including supplier control and FRACAS. A reliability program plan defines goals, tasks, deliverables, schedule, and responsibilities; it must match product criticality and contract requirements.
237 words, about 1 min