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NEW QUESTION 93
Maintainability is:
Response:
- A. Performing adequate maintenance on a system.
- B. The probability of a system being restored to functional operation within a given period of time.
- C. Probability of survival of a system for a given period of time.
- D. Maintaining a machine in satisfactory working condition.
Answer: B
NEW QUESTION 94
It is of primary importance that the choice of the time-to-failure distribution to represent a particular reliability situation be based on:
Response:
- A. Simplicity of use.
- B. Empirical grounds.
- C. Representation of the failure mechanism.
- D. Convenience
Answer: C
NEW QUESTION 95
The means of large samples from a population tend to be normally distributed around the population mean. This statement is TRUE according to which of the following theorems?
Response:
- A. Central limit.
- B. Camp-Meidel.
- C. Tchebysheffs
- D. Least squares.
Answer: A
NEW QUESTION 96
Production error by human operators may be caused by:
I. Inadequate work space.
II. Inadequate job planning information.
III. Poor environmental conditions.
Response:
- A. I
- B. I and II
- C. II
- D. All of the above
Answer: D
NEW QUESTION 97
When failed field item are returned for failure investigation, which of the following steps should be taken first?
Response:
- A. The physics of failure should be used to determine failure mechanism.
- B. The manufacturing process should be reviewed to ensure that it was followed during the production of the failed items.
- C. Each item's predicted reliability should be compared with its actual reliability.
- D. Each item should be investigated to classify and completely determine the failure mode
Answer: D
NEW QUESTION 98
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:
- A. Static analyzer.
- B. Test harnesses.
- C. Assertion processors.
- D. Test verifiers.
Answer: D
NEW QUESTION 99
When parts are selected for a product in development, which of the following key elements should be considered first?
Response:
- A. Cost
- B. Availability
- C. Serviceability
- D. Application.
Answer: D
NEW QUESTION 100
The department having the authority to sign all deviations pertaining to the design of the product is normally:
Response:
- A. Inspection
- B. Manufacturing engineering.
- C. Design engineering.
- D. Contractual
Answer: C
NEW QUESTION 101
Specifically, up-time ratio is a measure of:
Response:
- A. Maintainability
- B. Hazard rate.
- C. Maintenance action rate.
- D. Availability.
Answer: D
NEW QUESTION 102
System and cost effectiveness analysis outputs:
Response:
- A. Do not guide trade-off decisions.
- B. Can be used to determine the best balance of system performance, cost and schedule.
- C. In most cases will not identify the degree to which innovations should be pursued.
- D. Will not guide preliminary design features.
Answer: B
NEW QUESTION 103
The variations which the normal distribution curve describes are due to:
Response:
- A. Degradation failure.
- B. Non assignable causes.
- C. Catastrophic failure
- D. Assignable causes
Answer: B
NEW QUESTION 104
Which answer describes the MOST significant difference that Reliability Engineering has, compared to the Quality Profession?
Response:
- A. None of the above.
- B. It concerns failures over time.
- C. It concerns product conformance with specifications.
- D. It concerns customer satisfaction immediately after purchase.
Answer: B
NEW QUESTION 105
In the area of risk assessment, hazard severity categories are used to provide a measure of the seriousness involved. A system failure causing major environmental damage would be classified as:
Response:
- A. Negligible
- B. Catastrophic.
- C. Marginal
- D. Critical
Answer: D
NEW QUESTION 106
Total system effectiveness can be predicted during the conceptual or development design by considering three main elements of reliability. Which of the four elements does NOT apply?
Response:
- A. Test reliability.
- B. Use reliability.
- C. Manufacturing reliability.
- D. Inherent reliability.
Answer: A
NEW QUESTION 107
You have written what you feel is an excellent book on reliability principles. Your company wants you to conduct company-wide training classes on a specific reliability topic.
Your advice is sought and you recommend your text because you are familiar with it. What other professional action should be immediately taken?
Response:
- A. Recommend the work of another author to avoid the appearance of impropriety.
- B. Inform your employer of your business connection to the book.
- C. If the book is commercially available and your royalty is small, no other action is required.
- D. Be modest and nonassuming when explaining your work.
Answer: B
NEW QUESTION 108
Which of the following reliability tests is conducted during the prototype stage?
Response:
- A. Screening test.
- B. Demonstration test
- C. Qualification test
- D. Acceptance test.
Answer: B
NEW QUESTION 109
A system is made up to several identical parts of varying age. The reliability of each of these parts is given by R( t) = e - λt where λ is the failure rate in failures per hour and t is the operating time in hours.
Which of the following is TRUE about the reliability of these parts?
Response:
- A. The failure rate of the system is given by the product of the individual part reliabilities.
- B. The oldest part is expected to fail first.
- C. The failure rate of the system is given by the product of the individual part failure rates.
- D. Each of the parts has the same probability of failing during a given period of time.
Answer: D
NEW QUESTION 110
Which of the following is best defined as the practice of using parallel components and subsystems?
Response:
- A. Maintainability
- B. Redundancy
- C. Reliability
- D. Optimization
Answer: B
NEW QUESTION 111
When requesting "worst case" design analysis, you expect the reliability group to:
Response:
- A. Analyze only those products failing to meet specification requirements.
- B. Determine whether product requirements can be met with subassemblies assumed at their worst combination of tolerances.
- C. Assume all subassembly tolerances are at their maximum limit.
- D. Analyze the worst rejects.
Answer: B
NEW QUESTION 112
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