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NEW QUESTION # 146
In order to attain a high order of series reliability:
Response:
- A. The number of parts must have a low failure variance.
- B. The number of parts must be increased.
- C. The number of parts is insignificant if each part has a reliability of 99 percent of more.
- D. The number of parts must be kept to a minimum.
Answer: D
NEW QUESTION # 147
For a company operating multiple units of production equipment, the observed failure rate is 42 x 10-6 failures per operating hour, and the preventive maintenance rate is 320 x 10-6 actions per hour. What is the mean time between corrective and preventive maintenance (MTBM)?
Response:
- A. 2,688.2 hr.
- B. 26,935.0 hr
- C. 2,762.4 hr
- D. 2,840.9 hr
Answer: C
NEW QUESTION # 148
In a life test of 4 batteries, failures were observed after 10, 30, and 40 hours. The 4th battery was tested
75 hours without failure, at which time the test was terminated.
What are the estimated Mean-Time-To-Failure (theta) and failure rate (lambda)?
Response:
- A. Estimated MTTF = 52; Failure rate = .019
- B. Estimated MTTF = 14; Failure rate = .017
- C. Estimated MTTF = 27; Failure rate = .038
- D. Estimated MTTF = .019; Failure rate = 52
Answer: A
NEW QUESTION # 149
Which of the following tools are classified as structured root cause analysis tools?
I. 5P.
II. 7D, 8D or 9D problem solving.
III. Management oversight and risk tree analysis (MORT).
IV. Human performance evaluation system (HPE)
Response:
- A. I only
- B. II and III only
- C. I, II, III and IV
- D. I, II and IV only
Answer: C
NEW QUESTION # 150
The maintenance action rate (MAR) may be mandated by contract. If an extruder is run continuously and experiences 24 maintenance actions (downtown) in one year, what is the MAR?
Response:
- A. 0.00135 actions/hr.
- B. 0.0417 actions/hr
- C. 0.0054 actions/hr.
- D. 0.0027 acions/hr.
Answer: D
NEW QUESTION # 151
Which of the following is the GREATEST benefit of a fault-tree analysis?
Response:
- A. It is bottom-up and provides detailed accident scenario.
- B. It is comprehensive and readily converted to a computer program.
- C. It is easy to perform and does not require a computer program.
- D. It is systematic and identifies ways to avoid failures.
Answer: D
NEW QUESTION # 152
The equation below represents
Response:
- A. The probability of meeting specification.
- B. The limits for an X Bar control chart.
- C. The limits for a Range chart.
- D. The process capability adjusted for centering.
Answer: D
NEW QUESTION # 153
A QFD team's primary goal should be to
Response:
- A. Identify factors that influence customer satisfaction.
- B. Document the quality frequency and defects field testing program.
- C. Develop a matrix of critical component reliability tradeoffs.
- D. Develop a matrix of the environmental test levels for reliability.
Answer: A
NEW QUESTION # 154
According to the definition of reliability, performance, over the expected or intended life, is one criterion. In order to obtain a measurement for reliability, the actual life (t) must be compared to which of the following?
Response:
- A. Test cycles.
- B. Required life
- C. Probability of failures.
- D. MTBF
Answer: B
NEW QUESTION # 155
When performing trade-offs in evaluating parts for reliability, which of the following is LEAST important?
Response:
- A. Process and materials compatibility.
- B. Technical comparison of new part with standard part type.
- C. Initial parts costs.
- D. Search of data part history to established reliability potential.
Answer: C
NEW QUESTION # 156
The hazard function is:
I. The probability of failure during a very small time interval, assuming a failure occurs before that time.
II. A function of constant failure rate only.
III. A function of increasing failure rate only.
IV. The ratio of the probability density function to the reliability function.
Response:
- A. I only
- B. IV only
- C. II only
- D. III only
Answer: B
NEW QUESTION # 157
All of the following techniques are appropriate for reliability apportionment EXCEPT Response:
- A. Duane modeling.
- B. Advisory group on reliability of electronic equipment (AGREE) allocation methods.
- C. Basic weighted series.
- D. Part count.
Answer: A
NEW QUESTION # 158
Which of the following are the MOST desirable basic skills required of a reliability engineer assigned to a cross-functional product team?
Response:
- A. Reliability planning, testing and measurement.
- B. Communication, co-operation, and technical knowledge.
- C. Experience with FMECA and FTA.
- D. Reliability trouble shooting, data collection and analysis.
Answer: B
NEW QUESTION # 159
Which of the following is a basic element in the corrective action process?
Response:
- A. Investigate problems to determine root causes.
- B. Limit manufacturing expenses
- C. Identify failure for trend analysis.
- D. Apply Pareto analysis to failure.
Answer: A
NEW QUESTION # 160
Which of the following statistical distributions can be used to compare sample means?
Response:
- A. Normal.
- B. t test.
- C. Exponential
- D. Chi-square.
Answer: B
NEW QUESTION # 161
A systematic approach to analyze fault trees requires all of the following EXCEPT Response:
- A. Quantitative evaluation.
- B. System definition.
- C. Hierarchical diagram construction.
- D. Tolerance stack-up analysis
Answer: D
NEW QUESTION # 162
Which of the following is a model used for monitoring reliability growth?
Response:
- A. Arrehenius
- B. Lognormal
- C. Duane
- D. Normal
Answer: C
NEW QUESTION # 163
Specifications are written on parts to:
I. Enable procurement to buy usable parts.
II. Establish mechanical, functional, environmental and reliability requirements.
III. Provide inspection criteria.
Response:
- A. I
- B. II
- C. I and II
- D. All of the above.
Answer: D
NEW QUESTION # 164
Consider the four normal stress and strength distributions described below. Which component would have the highest reliability?
Response:
- A. The average and standard deviation of the stress distribution are both higher than for the strength curve.
- B. Both distributions have the same variance but the stress average is slightly higher than the strength average.
- C. The average and standard deviation of the stress and strength distributions are the same.
- D. Both distributions have the same standard deviation but the strength average is higher than the stress average.
Answer: D
NEW QUESTION # 165
Which of the following is a discrete probability distribution?
Response:
- A. Binomial
- B. Weibull
- C. Lognormal
- D. Normal
Answer: A
NEW QUESTION # 166
Which of the following is the BEST method of selecting parts of a new product?
Response:
- A. Using only those that have a high reliability.
- B. Using those that represent that latest technology.
- C. Drawing them from an approved parts list
- D. Performing incoming inspection.
Answer: C
NEW QUESTION # 167
You are the present ASQ Section Chairperson. Your supervisor, your company's Director of Quality, is very proud of the company's recent quality efforts which included ISO 9001 registration and the top quality award from the state.
He or she requested you to announce these achievements at the next ASQ Section meeting. As the ASQ Section Chair, your response should be which of the following?
Response:
- A. If I clarify my position, then I can do so.
- B. There is no problem in doing so.
- C. You must resign as Section Chairperson.
- D. This announcement must be done by another.
Answer: A
NEW QUESTION # 168
System and cost effectiveness analysis outputs:
Response:
- A. In most cases will not identify the degree to which innovations should be pursued.
- B. Will not guide preliminary design features.
- C. Can be used to determine the best balance of system performance, cost and schedule.
- D. Do not guide trade-off decisions.
Answer: C
NEW QUESTION # 169
As the reliability engineer overseeing supplier development, you review the supplier's corrective action problem solving guidebook. It is a structured approach and you notice in the problem definition segment that there is a reference to "is data" and "is not data".
You recognize that they are using a technique promoted and championed by:
Response:
- A. Kepner-Tregoe.
- B. Kaoru Ishikawa.
- C. Kaizen Principles.
- D. Deming's PDCA Cycle.
Answer: A
NEW QUESTION # 170
What is the probability of exactly 3 defects given the following?
- Probability of 1 or more defects = 0.75
- Probability of 2 or more defects = 0.41
- Probability of 3 or more defects = 0.17
- Probability of 4 or more defects = 0.05
Response:
- A. 0.22
- B. 0.12
- C. 0.24
- D. 0.17
Answer: B
NEW QUESTION # 171
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