CRE Exam Dumps, CRE Practice Test Questions
PDF (New 2021) Actual ASQ CRE Exam Questions
NEW QUESTION 16
In a certain application, two identical transducers are used to measure the vacuum in a system. The system is considered to have failed if either of the vacuums read by the transducers varies from the standard by more than 10mm Hg.
Which of the following is the correct reliability logic block diagram for the transducer assembly?
Response:
- A. Option A
- B. Option B
- C. Option D
- D. Option C
Answer: A
NEW QUESTION 17
A company has produced a new module. The failure data on 40 returns are shown below.
Which of the following is the first step in the review of this situation ?
Response:
- A. Determine the location in which the failure occurred.
- B. Find the median of the data set.
- C. Categorize the data by using a Pareto analysis.
- D. Identify the field service personnel who handled the returns.
Answer: A
NEW QUESTION 18
For a reliability plan to be most effective, the reliability tasks should be integrated with which of the following plan?
Response:
- A. Product sales.
- B. Product distribution
- C. Reliability centered maintenance.
- D. Product design and development.
Answer: D
NEW QUESTION 19
Which of the following techniques is NOT used when derating parts to enhance their overall reliability?
Response:
- A. Derating for temperature.
- B. Derating for stress.
- C. Lower power dissipation.
- D. Use of 100% rating.
Answer: D
NEW QUESTION 20
A small sample from a product population is subjected to multiple levels of elevated stress. Which of the following could be used to model the life of the product?
Response:
- A. Inverse power law.
- B. Pareto rule.
- C. Poisson process.
- D. Pascal expansion.
Answer: A
NEW QUESTION 21
The two principal measures of failure during risk assessment are which of the following?
Response:
- A. Failure analysis and failure effects.
- B. Failure severity and failure probability.
- C. Failure method and failure mode.
- D. Failure mode and failure mechanism.
Answer: B
NEW QUESTION 22
Which of the following graphs represents a product that is a good candidate for an accelerated degradation test involving overstress testing?
Response:
- A. Option A
- B. Option B
- C. Option D
- D. Option C
Answer: A
NEW QUESTION 23
Derating enhance reliability in all of the following ways EXCEPT by
Response:
- A. Increasing the long-term drift in parameter values.
- B. Establishing a robustness design margin
- C. Restricting stress on components to levels below their rated limits
- D. Reducing the impact of parameter variations.
Answer: B
NEW QUESTION 24
Preliminary hazard analysis:
I. Is a review of safety problems prior to production.
II. Is normally done at a time when there is little design detail.
III. Can be used to identify the principal hazards when the product is first conceived.
Response:
- A. III only
- B. I, II and III
- C. I only
- D. I and II only
Answer: B
NEW QUESTION 25
Your customer required a paper cutting machine with these specifications:
Speed : 100m/minute; Cutting width : 47 inches; Good product : 99%
You deliver a machine to this customer with these specifications :
Speed : 110m/minute; Cutting width : 48 inches; Good product: 97%.
How would you classify this success/failure ?
Response:
- A. A technical failure.
- B. None of the above.
- C. A limited success
- D. A technical success, but quality failure.
Answer: A
NEW QUESTION 26
An off road trip is contemplated using a utility vehicle equipped with five tires. The probability of failure for each tire on this trip follows the binomial distribution and is estimated to be 0.5.
What is the probability that the trip can be completed successfully with the five available tires?
Response:
- A. 0.3125
- B. 0.1875
- C. 0.0625
- D. 0.5000
Answer: B
NEW QUESTION 27
The optimum cost point for total life cycle costs occurs:
Response:
- A. When operations and maintenance costs are minimized.
- B. When reliability program expenditures are maximized.
- C. When manufacturing and development costs are minimized.
- D. When acquisition costs plus ongoing costs are minimized.
Answer: D
NEW QUESTION 28
QFD stand for
Response:
- A. Quality Function Deployment.
- B. Qualification of Preliminary Design.
- C. Quality Focused Department.
- D. Quantitative Functional Development.
Answer: A
NEW QUESTION 29
Fifteen(15) motors were tested for a total of 1,200 cumulative hours, with four failure occuring. The test was then failure-truncated. If the failure rate is assumed to be constant, what is the 95% lower confidence limit of MTBF?
Response:
- A. 155 hours.
- B. 131 hours.
- C. 876 hours.
- D. 609 hours
Answer: A
NEW QUESTION 30
The reliability parameter is one of the system performance parameters with significant influence on:
Response:
- A. Capability
- B. Availability and dependability.
- C. Transfer functions.
- D. Hostile man-made environments
Answer: B
NEW QUESTION 31
A design review committee has recommended changes to a proposed design. Whose job is it to investigate and incorporate the ideas that will aid product reliability?
Response:
- A. The senior decision maker.
- B. The design engineer.
- C. The design review chairman.
- D. The reliability engineer.
Answer: B
NEW QUESTION 32
A plastics plant operates 8 extruders producing plastic film. Production volume requirements cannot be met if less than 6 extruders are operating. There is a .30 probability that a machine stopping malfunction will occur.
What is the probability that 6 extruders can remain operating throughout the day?
Response:
- A. 0.5518
- B. 0.4482
- C. 0.8059
- D. 0.5783
Answer: A
NEW QUESTION 33
Which of the following is best defined as the practice of using parallel components and subsystems?
Response:
- A. Redundancy
- B. Reliability
- C. Optimization
- D. Maintainability
Answer: A
NEW QUESTION 34
Data collection for a failure reporting, analysis, and corrective action system is important. The control of input data is BEST determined by:
Response:
- A. Possible cause identification
- B. The use of a form.
- C. A failure review board.
- D. Training of data collectors.
Answer: D
NEW QUESTION 35
Which of the following techniques is MOST beneficial in tracking a process to determine whether corrective action should be taken?
Response:
- A. Pareto analysis.
- B. Time series plotting.
- C. Control charting.
- D. Trend analysis.
Answer: C
NEW QUESTION 36
Given mean-time-to-failure of 200 hours for each of two components, what is the probability of system failure if both components operate in parallel for one hour?
Response:
- A. P = 0.000025
- B. P = 0.001
- C. P = 0.005
- D. P = 0.010
Answer: A
NEW QUESTION 37
What is the Z value needed to conduct a two tail test in a statistical inference problem, specifying 90% level of confidence?
Response:
- A. 1.28
- B. 2.24
- C. 1.96
- D. 1.65
Answer: D
NEW QUESTION 38
Which of the following can be used to determine the MTTR?
Response:
- A. Mean maintenance action time.
- B. Mean time between maintenance actions.
- C. Mean time between failures and potential availability.
- D. Mean time between failures.
Answer: C
NEW QUESTION 39
The reliability of a device comprised of various parts functioning in series is the:
Response:
- A. Product of the reliability.
- B. Product of the unreliability
- C. Sum of the reliability.
- D. Sum of the probabilities of the unreliability.
Answer: A
NEW QUESTION 40
A consideration for proper part selection is:
I. Parts application and specifications.
II. Selection, control and integration.
III. Derating.
Response:
- A. II and III only
- B. I, II and III
- C. I and III only
- D. I only
Answer: B
NEW QUESTION 41
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