[2023年07月] 更新されたのはASQ CRE問題集PDFオンラインエンジン [Q180-Q204]

[2023年07月] 更新されたのはASQ CRE問題集PDFオンラインエンジン

CRE.PDFで問題解答！サンプル問題は信頼され続けます

質問 # 180
Highly repetitive operations should be assigned to:
Response:

A. A machine.
B. An operator assisted by a computer.
C. An operator.
D. A machine and operator performing the same task alternately.

正解：A

質問 # 181
One method of evaluating the design reliability is to analyze the design assuming the worst case. Which of the following techniques is NOT applicable for worst case analysis?
Response:

A. Eyring model
B. Monte Carlo
C. Root-sum squared.
D. Extreme value

正解：A

質問 # 182
Nonrelevant failures include all of the following EXCEPT:
Response:

A. Operating adjustment failures.
B. Mishandling failures
C. Unverified failures.
D. Human error failures.

正解：C

質問 # 183
When requesting "worst case" design analysis, you expect the reliability group to:
Response:

A. Determine whether product requirements can be met with subassemblies assumed at their worst combination of tolerances.
B. Analyze only those products failing to meet specification requirements.
C. Assume all subassembly tolerances are at their maximum limit.
D. Analyze the worst rejects.

正解：A

質問 # 184
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. If the book is commercially available and your royalty is small, no other action is required.
C. Inform your employer of your business connection to the book.
D. Be modest and nonassuming when explaining your work.

正解：C

質問 # 185
Which of the following provides the maximum benefit of parts standardization?
Response:

A. More reliable processes.
B. Lower product life cycle costs.
C. Fewer warranty claims.
D. Fewer inspection errors.

正解：B

質問 # 186
The two principal measures of failure during risk assessment are which of the following?
Response:

A. Failure mode and failure mechanism.
B. Failure analysis and failure effects.
C. Failure severity and failure probability.
D. Failure method and failure mode.

正解：C

質問 # 187
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. Each of the parts has the same probability of failing during a given period of time.
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 reliabilities.
D. The failure rate of the system is given by the product of the individual part failure rates.

正解：A

質問 # 188
A vendor must perform tests on parts to determine which of the following?
Response:

A. Functional capability under specified environmental conditions.
B. Cost.
C. Materials and processes.
D. Configuration and size.

正解：A

質問 # 189
What percentage of the material is expected to fail?
Response:

A. 8.1%
B. 2.0%
C. 2.3%
D. 1.4%

正解：C

質問 # 190
Which of the following is TRUE about the distribution of the mean for large samples?
Response:

A. It is lognormally distributed.
B. It is the same as the population distributions.
C. It is exponentially distribution.
D. It is normally distributed.

正解：D

質問 # 191
Your company is investigating the use of Reliability Centered Maintenance. A RCM program would encompass which of the following features?
I. Preserve system function (provide an output).
II. Identify failure modes that affect system function.
III. Prioritize function needs (via failure modes).
IV. Select needed PM tasks1
Response:

A. I, II, III and IV
B. I only
C. II and III only
D. I and IV only

正解：A

質問 # 192
The investment in automated test equipment is often justified under which of the following circumstances Response:

A. Conformance records are required.
B. Repair times must be short.
C. Traceable records are required.
D. Numerous tests must be performed.

正解：D

質問 # 193
Which of the following activities is MOST effective in increasing reliability during a product's life cycle?
Response:

A. Developing robust design.
B. Improving gage repeatability and reproducibility
C. Developing capable processes.
D. Developing an aggressive testing strategy.

正解：A

質問 # 194
An exclusive "or" gate produces an output only if:
Response:

A. All of the input events occur in the correct order.
B. Any one of the input events occur
C. One, but not both input events occur.
D. All of the input events occur simultaneously

正解：C

質問 # 195
What is the MOST accurate method to verify that the maintainability requirement of a design is being met?
Response:

A. By thorough design reviews.
B. By analysis of the design.
C. By demonstration at the customer's facility.
D. By performing maintainability prediction.

正解：C

質問 # 196
If a component has a known constant failure rate of 0.0037 failures per hour ; the reliability of two of these components in a series alignment would be:
Response:

A. Insufficient information to solve problem.
B. Dependent on the wear out rate of a mating subsystem
C. 99.63 percent.
D. Less than 99 percent.

正解：A

質問 # 197
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 = .019; Failure rate = 52
C. Estimated MTTF = 27; Failure rate = .038
D. Estimated MTTF = 14; Failure rate = .017

正解：A

質問 # 198
Field data for 20 mechanical suspension systems showed 3 failure during the 12 month warranty period.
When failure occurred they were repair within 2 days and the system returned to operation. If the time of failure for the failed system were 4.4 moths, 6.3 months, and 10.7 months after placement in the field, what is the 90% lower confidence estimate on MTBF?
Response:

A. 33.7 months
B. 35.9 months
C. 43.5 months
D. 4.1 months

正解：B

質問 # 199
From a company's point of view, which of the following costs would be LEAST appropriate for determining the cost of reliability?
Response:

A. Life testing.
B. Reliability training
C. Warranty cost.
D. Equipment depreciation.

正解：D

質問 # 200
Which of the following is a basic element in the corrective action process?
Response:

A. Limit manufacturing expenses
B. Investigate problems to determine root causes.
C. Identify failure for trend analysis.
D. Apply Pareto analysis to failure.

正解：B

質問 # 201
The rated breaking strength of a suspension bridge cable is 150,000 pounds. An example using this cable in a derated condition is which of the following?
Response:

A. The cable as a parallel component.
B. The cable in a 225,000 pound maximum stress application
C. The cable in a 75,000 pound maximum stress application
D. The cable in a 150,000 pound maximum stress application

正解：C

質問 # 202
Reliability Growth is:
I. Often mathematically modeled with the Duane or AMSSA approaches.
II. The existence of more than one means for accomplishing a given functions.
III. Improvement of a reliability parameter by correcting deficiencies in the design.
Response:

A. III only
B. I and II only
C. I and III only
D. II only

正解：C

質問 # 203
A good practice in selection of components is to select standard parts. The valid reasons include:
I. Standard parts are generally proven and at a cost advantage.
II. Use of standard parts sometimes reduces the number of different parts.
III. Standard parts are usually more technically innovative.
IV. Standard parts might prevent inventory expansion.
V. Standard parts usually are free from schedule concerns.
Response: