ASQ Certified Reliability Engineer (CRE) - CRE Exam Practice Test
The proper software tool for software development projects can help reduce test time. The software tools used to measure internal test coverage are called.
Response:
Response:
Correct Answer: D
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A 2 level 5 factor experiment is being conducted to optimize the reliability of an electronic control module. A half replicate of the standard full factorial experiment is proposed. The number of treatment combinations will be Response:
Correct Answer: D
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A field test may be considered satisfactory if:
Response:
Response:
Correct Answer: B
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The failure rate for an IC chip is 0.0023 per hour of operation. Calculate the MTBF given that the failure rate is constant.
Response:
Response:
Correct Answer: C
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Human will perform more reliably if:
I. They understand what is required and why.
II. The task is challenging and complex.
III. Pressure is applied which penalizes failure.
IV. There are incentives for quality.
Response:
I. They understand what is required and why.
II. The task is challenging and complex.
III. Pressure is applied which penalizes failure.
IV. There are incentives for quality.
Response:
Correct Answer: A
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Three identical subsystem are connected in an active parallel, non-load-sharing system. At least two of the tree must work in order for the system to work. The time to failure for each subsystem is exponential with a common failure rate, λ. The reliability of the system can be expressed as which of the following?
Response:
Response:
Correct Answer: C
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As the reliability engineer of a medium sized firm, you have developed a reliability test plan for the shop.
The shop manufactures products on a medium batch size basis. The batches range from 30 to 500 pieces per order. The test plan should include all of the following consideration EXCEPT Response:
The shop manufactures products on a medium batch size basis. The batches range from 30 to 500 pieces per order. The test plan should include all of the following consideration EXCEPT Response:
Correct Answer: C
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Basic sources of reliability data are:
I. In-plant testing.
II. Field testing.
III. Operation by user.
Response:
I. In-plant testing.
II. Field testing.
III. Operation by user.
Response:
Correct Answer: D
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Software reliability planning includes all of the following EXCEPT
Response:
Response:
Correct Answer: C
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Which of the following statement is TRUE about maintainability?
Response:
Response:
Correct Answer: C
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Failure occur on a system at 75, 79, 83, 85 hours. Assuming normality, one sided and unbiased the lower tolerance limit for 95% reliability with 90% confidence for this sample is:
Response:
Response:
Correct Answer: C
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Which of the following is a key element of an effective reliability growth program?
Response:
Response:
Correct Answer: A
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For single-failure modes, the probability plotting methods used to derive time-to-failure distribution parameters are applicable only when the data are Response:
Correct Answer: C
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