CRE Dumps PDF - CRE Real Exam Questions Answers
Get Started: CRE Exam [2024] Dumps ASQ PDF Questions
ASQ CRE certification exam consists of 150 multiple-choice questions and is a computer-based test. CRE exam is administered by the American Society for Quality (ASQ), which is a global authority on quality management and quality assurance. The CRE exam covers a range of topics, including reliability theory, reliability design and development, reliability testing and analysis, and continuous improvement methods.
ASQ CRE exam covers a wide range of topics related to reliability engineering, including reliability modeling, data analysis, and probability theory. CRE exam consists of 150 multiple-choice questions, which must be completed within four hours. To be eligible to take the exam, candidates must have at least eight years of relevant work experience, or a combination of education and work experience. Upon passing the exam, candidates will be awarded the ASQ CRE certification, which is valid for three years.
NEW QUESTION # 119
Laboratory tests of a new polymer prototype yielded the following proportions of a critical compound:
4.2 ppm, 4.1 ppm, 4.7 ppm, 4.9 ppm, 5.3 ppm
What is the sample standard deviation?
Response:
- A. 0.445
- B. 0.498
- C. 0.464
- D. 0.475
Answer: B
NEW QUESTION # 120
The success of the FMEA is principally dependent on:
I. Good communication between the reliability engineer and the designer.
II. Use of the correct form and definitions.
III. Early determination of the reliability critical items.
Response:
- A. II and III only
- B. I only
- C. III only
- D. II only
Answer: B
NEW QUESTION # 121
A certain light switch fails with a failure rate of 10 -4 . If the switch is used 20 times per week, what is the probability of the switch failing by the end of 3-year period?
Response:
- A. 3.12 × 10 -1
- B. 7.32 × 10 -1
- C. 7.32 × 10 -5
- D. 2.68 × 10 -1
Answer: D
NEW QUESTION # 122
Which answer correctly describes the experimental design on the left?
Response:
- A. Greaeco-Latin Square.
- B. Latin Square.
- C. Youden Square.
- D. Randomezed Complete Block
Answer: A
NEW QUESTION # 123
In the Taguchi design methodology, what are noise factors?
Response:
- A. Factors that maximize parameter design.
- B. Factors that impact tolerance design
- C. Factors that strongly influence the mean response.
- D. Factors that influence variation in the output
Answer: D
NEW QUESTION # 124
Data collection for a failure reporting, analysis, and corrective action system is important. The control of input data is BEST determined by:
Response:
- A. Training of data collectors.
- B. A failure review board.
- C. Possible cause identification
- D. The use of a form.
Answer: A
NEW QUESTION # 125
All of the following statements concerning statistical inference are true EXCEPT:
Response:
- A. Estimation is the process of analyzing a sample result in order to predict the value of the population parameter
- B. The point estimate is a single value used to estimate the population parameter.
- C. The confidence interval is a range of values which may include the true value of a population parameter.
- D. The confidence interval is normally the statistical tolerance limits of the population parameter.
Answer: D
NEW QUESTION # 126
Which of the following graphs represents a product that is undergoing step-stress testing?
Response:
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: C
NEW QUESTION # 127
What is the reliability of this system?
Where component reliabilities, A = 0.80 B = 0.95 C = 0.82 D = 0.85 E = 0.75
Response:
- A. 0.90
- B. 0.96
- C. 0.04
- D. 0.10
Answer: B
NEW QUESTION # 128
The following fault tree diagram was developed by a team.
The probability are as follow:
A1 = 0.90 B1 = 0.90 C1 = 0.80
A2 = 0.80 B3 = 0.80 C2 = 0.70
A4 = 0.70
The likelihood that the system fault will occur is
Response:
- A. 0.5034
- B. 0.3686
- C. 0.4977
- D. 0.3073
Answer: C
NEW QUESTION # 129
What is the general use of an R chart?
Response:
- A. To determine if the process variance is in control.
- B. To determine the variance of the process.
- C. To determine if the process is in control.
- D. To determine if the process mean is in control.
Answer: A
NEW QUESTION # 130
The following reliability block diagram shows components A, B, C, D and E with reliability Ra, Rb, Rc, Rd and Re, respectively. A or B are system entry points.
On the basis of this information, what is the reliability of the system?
Response:
- A. Ra Rc [1 - (1 - Rd) (1 - Re)] + (1 - Ra) Rb Rc [1 - (1 - Rd) (1 - Re)]
- B. [1 - (1 - Ra Rb)] Rc [1 - (1 - Rd Re)]
- C. Ra Rc [1 - (1 - Rd Re)] + (1 - Ra) Rb Rc [1 - (1 - Rd) (1 - Re)]
- D. Ra Rb [1 - (1 - Rd) (1 - Re)] Rc (1 - Ra) Rb [1 - (1 - Rd) (1 - Re)]
Answer: A
NEW QUESTION # 131
Derating parts in specific applications is performed in order to:
Response:
- A. Show which parts are inferior in design.
- B. Determine the stress ratios.
- C. Lower the stress limits to lower failure rates.
- D. Establish a preferred parts list.
Answer: C
NEW QUESTION # 132
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:
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 133
Typical statistical distributions or confidence limits can be determined for accelerated tests. In the case of a step-stress test, the proper estimated distribution would be which of the following?
Response:
- A. Weibull
- B. Exponential
- C. Lognormal
- D. None, not meaningful.
Answer: D
NEW QUESTION # 134
Which of the following is NOT considered good practice in reliability design?
Response:
- A. Using series design.
- B. Simplifying item configuration.
- C. Using proven parts.
- D. Using failure mode and effects analysis (FMEA).
Answer: A
NEW QUESTION # 135
Customer feedback and field data could NOT normally:
Response:
- A. Provide information for reliability performance measures
- B. Provide information for product improvement.
- C. Provide information for company's management.
- D. Allow management to identify who is to blame.
Answer: D
NEW QUESTION # 136
What functions can normally be expected to be assigned to the Reliability Engineering Department of a company that emphasizes product reliability?
I. Maintain a failure reporting system.
II. Establish reliability growth.
III. Oversee use of statistical tools.
IV. Evaluate customer surveys regarding product costs.
V. Establish and maintain a corrective action system.
Response:
- A. I and II only
- B. II and III only
- C. I, II and III only
- D. I, III, IV and V only
Answer: C
NEW QUESTION # 137
In standby parallel systems, imperfect switching means :
I. The switch is not perfect.
II. The secondary unit is on back-up.
III. The reliability of the system is less than with perfect switching.
IV. The secondary unit has the same reliability as the primary unit.
Response:
- A. I
- B. I and II
- C. All of the above
- D. I, II and III
Answer: D
NEW QUESTION # 138
Internal testing sources of component reliability data are:
Response:
- A. Industry and Public data.
- B. Warranty returns and Customer complaints.
- C. Prototype and Reliability growth.
- D. Government furnished data.
Answer: C
NEW QUESTION # 139
The results of a designed experiment are to be analyzed using a chi-square test. There are five treatments under consideration and each treatment falls under two categories (success or failure).
The calculated value of chi-squre is compared to the tabulated chi-square with how many degrees of freedom?
Response:
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 140
A device has a MTBF of 400 hours. Assuming an exponential distribution of time to failure, what is the maximum time of allowable operation if a reliability of .995 is required?
Response:
- A. 0.02 hours
- B. 2 hours
- C. 0.2 hours
- D. 20 hours
Answer: B
NEW QUESTION # 141
A high incidence of failures has developed during aircraft acceptance testing. The identified failure is that an instrument panel light has malfunctioned on 6 of the last 10 aircraft tested.
This problem needs to be investigated and a Failure Reporting and Corrective Action System (FRACAS) needs to be completed without stopping aircraft production.
If the cause of the failure is determined to be a faulty subassembly manufactured only by a single supplier, and this situation is threatening to shut down aircraft production, the next step should be to Response:
- A. Initiate a supplier corrective action and return all of the unsorted inventory.
- B. Visit the supplier to assist in determining the root cause of the problem.
- C. Issue a Government and Industry Data Exchange Program (GIDEP) alert.
- D. Update the inspection instruction and retrain receiving inspection.
Answer: B
NEW QUESTION # 142
Which of the following activities has the greatest impact on product reliability?
Response:
- A. Design.
- B. Service.
- C. Shipping and delivery
- D. Manufacturing
Answer: A
NEW QUESTION # 143
When requesting "worst case" design analysis, you expect the reliability group to:
Response:
- A. Analyze only those products failing to meet specification requirements.
- B. Analyze the worst rejects.
- C. Assume all subassembly tolerances are at their maximum limit.
- D. Determine whether product requirements can be met with subassemblies assumed at their worst combination of tolerances.
Answer: D
NEW QUESTION # 144
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