CRE試験無料問題集（456題）「ASQ Certified Reliability Engineer (CRE) 認定」

出題：1

It is reliability's job to see that all the tasks outlined in the reliability program are:
Response:

A. Making sure that quality control does its job.

B. Carried out by reliability engineers.

C. Doing those jobs that the primary responsible departments are incapable of doing.

D. Carried out by the department having the primary responsibility.

正解：D 解答を投票する

出題：2

Which of the following techniques is MOST efficient when two nuisance variables are to be averaged out in an experimental design?
Response:

A. Latin square

B. Paired test.

C. Full factional.

D. Fractional factorial.

正解：D 解答を投票する

出題：3

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

A. Improving gage repeatability and reproducibility

B. Developing capable processes.

C. Developing robust design.

D. Developing an aggressive testing strategy.

正解：C 解答を投票する

出題：4

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. Numerous tests must be performed.

D. Traceable records are required.

正解：C 解答を投票する

出題：5

A system has components connected in active parallel. At least n - 1 of the components must operate for the system to function properly. Suppose the time to failure of each component has an exponential distribution with the same failure rate λ. The mean time to failure of this system is:
Response:

A. (2n - 1)/n(n - 1) λ.

B. 1/(n - 1) λ

C. 2/(n - 1) λ

D. (n - 1)/n 2 λ

正解：A 解答を投票する

出題：6

Which of the following is NOT considered good practice in reliability design?
Response:

A. Using series design.

B. Using failure mode and effects analysis (FMEA).

C. Using proven parts.

D. Simplifying item configuration.

正解：A 解答を投票する

出題：7

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

A. 2.3%

B. 2.0%

C. 8.1%

D. 1.4%

正解：A 解答を投票する

出題：8

Derating parts in specific applications is performed in order to:
Response:

A. Lower the stress limits to lower failure rates.

B. Establish a preferred parts list.

C. Determine the stress ratios.

D. Show which parts are inferior in design.

正解：A 解答を投票する

出題：9

Which of the following is the MOST effective technique for prioritizing critical factors for problem- solving?
Response:

A. Cause-and-effect diagram

B. Scatter diagram.

C. Venn diagram

D. Pareto diagram

正解：D 解答を投票する

出題：10

Derating enhance reliability in all of the following ways EXCEPT by
Response:

A. Restricting stress on components to levels below their rated limits

B. Reducing the impact of parameter variations.

C. Increasing the long-term drift in parameter values.

D. Establishing a robustness design margin

正解：D 解答を投票する

出題：11

Feedback channels for the planning, management and assessment of product safety should include:
I. Both official and unofficial sources.
II. Phone, fax, mail and questionnaire sources.
III. Captured company process information.
Response:

A. II only

B. I and III only

C. II and III only

D. I, II and III

正解：D 解答を投票する

出題：12

When failed field item are returned for failure investigation, which of the following steps should be taken first?
Response:

A. The manufacturing process should be reviewed to ensure that it was followed during the production of the failed items.

B. Each item should be investigated to classify and completely determine the failure mode

C. Each item's predicted reliability should be compared with its actual reliability.

D. The physics of failure should be used to determine failure mechanism.

正解：B 解答を投票する

出題：13

What are the life cycle costs for a new stamping machine purchased by a metal fabrication plant?
Pertinent cost data follows:
Purchase Price = $230,000
Repair Costs = $107,000
Post Purchase Costs = $870,000
Start Up Costs = $125,000
Maintenance Costs = $420,000
Energy Costs = $325,000
Response:

A. $2,077,000

B. $1,207,000

C. $1,100,000

D. $787,000

正解：C 解答を投票する

出題：14

A certain equipment has a MTBF of m = 300 hours. Assuming an exponential distribution of time to failure, what is the maximum time of allowable operation if a reliability of 0.999 is required?
Response:

A. 0.3 hours.

B. 300 hours

C. 0.003 hours.

D. 30 hours.

正解：A 解答を投票する

出題：15

The reliability of a complex system can BEST be improved by:
Response:

A. Selecting system components objectively.

B. Including redundant concepts in design.

C. Multiple system testing ( > 15 systems).

D. Well designed and executed preventive maintenance system.

正解：B 解答を投票する

出題：16

Reliability data is rarely complete. 50 units are placed on test for 50 hours. During the test several units fail. The remaining units are removed from testing at that point.
Which of the following type(s) of censoring has (have) occurred?
I. Right censoring.
II. Single censoring.
III. Time censoring.
IV. Type I censoring.
Response:

A. I, III and IV only

B. I, II, III and IV

C. II and III only

D. I only

正解：B 解答を投票する

出題：17

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. Search of data part history to established reliability potential.

D. Initial parts costs.

正解：D 解答を投票する

出題：18

A product - design team is in the material-selection phase for a new product. The following four treatments need to be considered:

What is the maximum number of treatment combinations?
Response:

A. 11

B. 48

C. 4

D. 6

正解：B 解答を投票する

CRE試験無料問題集「ASQ Certified Reliability Engineer (CRE) 認定」