ASQ CRE Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Reliability Fundamentals | 15% | - Life-cycle Reliability Concepts - Leadership and Strategic Management - Reliability Program Planning and Integration - Ethics and Compliance |
| Reliability Modeling and Prediction | 15% | - System Reliability Models - Component and Part Reliability - Maintainability and Availability - Software Reliability |
| Reliability in Design and Development | 17% | - Fault Tree Analysis (FTA) - Design for Reliability - Reliability Prediction and Allocation - Failure Mode and Effects Analysis (FMEA) |
| Reliability Testing | 15% | - Field Data Analysis - Reliability Demonstration Testing - Accelerated Life Testing - Test Planning and Strategy |
| Failure Analysis and Corrective Action | 10% | - FRACAS Implementation - Corrective and Preventive Action - Failure Analysis Methods - Root Cause Analysis |
| Probability and Statistics for Reliability | 23% | - Data Collection and Analysis - Statistical Inference and Estimation - Statistical Distributions - Basic Probability Theory |
| Maintainability and Availability | 5% | - Availability Modeling - Maintenance Strategies - Maintainability Concepts |
ASQ Certified Reliability Engineer (CRE) Sample Questions:
Question #1
When a large number of components have been tested for a fixed time with no failure then:
Response:
A. The Laplace rule of succession will apply.
B. The failure rate is at least an individual test time.
C. The failure rate is equivalent to the sum of the individual test times.
D. The failure rate is indeterminable.
Question #2
Highly repetitive operations should be assigned to:
Response:
A. An operator.
B. An operator assisted by a computer.
C. A machine.
D. A machine and operator performing the same task alternately.
Question #3
The flat portion of the bathtub curve is a region of chance failures; therefore, for the reliability equation shown below:
Response:
A. Applies to the wear out region as well as the flat region.
B. Applies only to this region.
C. Applies to the entire bathtub curve.
D. Does not apply to this region.
Question #4
Large power generating stations frequently have auxiliary turbine generators operating at speed. They do not produce power but act as back-ups. This type of redundancy is known as:
Response:
A. Active parallel system.
B. Bayes' theorem application.
C. Shared load parallel system.
D. Stand-by parallel system.
Question #5
A component fails on the average of once every 4 years with 75% of the failures observed to occur during stormy weather.
If there are 12 hours of stormy whether to every 240 hours of good weather, what are the failure rates for stormy and good weather respectively?
Response:
A. λ (stormy) = 4.202, λ (good) = 0.0525 failures/yr
B. λ (stormy) = 3.938, λ (good) = 0.0656 failures/yr
C. λ (stormy) = 4.000, λ (good) = 0.0655 failures/yr
D. λ (stormy) = 6.594, λ (good) = 0.0458 failures/yr
Solutions:
| Question #1 Correct Answer: D | Question #2 Correct Answer: C | Question #3 Correct Answer: B | Question #4 Correct Answer: D | Question #5 Correct Answer: B |
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