ASQ Certified Reliability Engineer (CRE) - CRE Exam Questions [2026]

QUESTION NO: 1
A key distinction between Taguchi designed experiments and classical designed experiments is that Taguchi designs Response:

A. Do not rely on randomization and classical experiments do. B. Are full-factorial and classical designs are not. C. Are not orthogonal and classical designs are. D. Include 2-level factors and classical design do not.

Correct Answer: A

QUESTION NO: 2
Using complete field-based data, a reliability engineer has analyzed the reliability growth of a repairable system over the last 24 months. The analysis suggests a "no growth" condition, and that finding is reported to management.
Due to a pending multimillion dollar order, management requests that a line be drawn to show growth where none actually exists. The engineer's department manager directs the engineer to comply with management request.
The system is released without improvements and the company receives the multimillion dollar order from an external customer. The customer then requests evidence of the reliability growth. Which of the following actions by the engineer would be MOST appropriat?
Response:

A. Arrange a meeting with the customer and discuss all past occurrences B. Ask the department manager to respond to the customer's request. C. Revisit the original data and project artificial reliability growth to satisfy the customer's request. D. Arrange a meeting with the department manager and upper management to discuss the reliability report.

Correct Answer: D

QUESTION NO: 3
The MOST valid source of failure rate data is:
Response:

A. Test data obtained under very closely controlled conditions. B. Environmental test data. C. The manufacturing process. D. Operational data.

Correct Answer: D

QUESTION NO: 4
An aggregate preventive maintenance program can greatly increase the overall availability of a system because of the Response:

A. Improved control of inventory levels. B. Ability to improve observed reliability. C. Emphasis on budgeting operational expenses. D. Ability to improve product safety.

Correct Answer: B

QUESTION NO: 5
Using complete field-based data, a reliability engineer has analyzed the reliability growth of a repairable system over the last 24 months. The analysis suggests a "no growth" condition, and that finding is reported to management.
Due to a pending multimillion dollar order, management requests that a line be drawn to show growth where none actually exists. The engineer's department manager directs the engineer to comply with management request.
According to the ASQ Code of Ethics, which of the following is an appropriate action for the engineer to take next?
Response:

A. Ask the department manager for support in presenting the original data to upper management in a more convincing way. B. Advise management of the consequences to expect if the engineer's professional judgement is overruled. C. Request a meeting with a representative from Occupational Safety and Hazard Administration (OSHA) D. Initiate new product reliability growth tests.

Correct Answer: B

QUESTION NO: 6
Which of the following is the BEST example of a random variable?
Response:

A. The mean time between failure. B. A hazard rate. C. The mean time to repair. D. The mean time between failure.

Correct Answer: D

QUESTION NO: 7
In an elevated-temperature test on an electronic system, which of the following models is used to calculate the acceleration factor?
Response:

A. Lognormal model. B. Inverse power law model. C. Arrhenius model. D. Exponential model.

Correct Answer: C

QUESTION NO: 8
The use of plug-in devices improves all of the following EXCEPT:
Response:

A. Fault isolation time. B. Mean time to repair. C. Design reliability. D. Interchangeability

Correct Answer: C