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

出題：1

The maintenance time constraint (t) is:
Response:

A. The reciprocal of mission time (T).

B. Usually prescribed as a requirement of the mission.

C. The same as the maintainability increment (M delta).

D. Determined by the exponential failure law and log tables.

正解：B 解答を投票する

出題：2

What is the general use of an R chart?
Response:

A. To determine if the process is in control.

B. To determine the variance of the process.

C. To determine if the process mean is in control.

D. To determine if the process variance is in control.

正解：D 解答を投票する

出題：3

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 design engineer.

B. The reliability engineer.

C. The senior decision maker.

D. The design review chairman.

正解：A 解答を投票する

出題：4

Of the following, which is the MOST important reliability principle?
Response:

A. Use only proven designs.

B. Specify only high reliability components.

C. Consider reliability early in the design phase.

D. Use redundancy throughout the design.

正解：C 解答を投票する

出題：5

The failure rate for an IC chip is 0.0023 per hour of operation. Calculate the MTBF given that the failure rate is constant.
Response:

A. 434.78 hrs

B. 486 hrs

C. 43 hrs

D. 37.6 hrs

正解：A 解答を投票する

出題：6

Reliability objectives and requirements should be set in which of the following life cycle phases?
Response:

A. Concept and design.

B. Operation and repair.

C. Full scale design and development.

D. Validation and test.

正解：A 解答を投票する

出題：7

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

正解：B 解答を投票する

出題：8

The use of PERT requires:
Response:

A. Slack times to be added to the critical path.

B. Time estimates for each activity in the network.

C. The critical path to be known in advance.

D. Less data than a Gantt chart.

正解：B 解答を投票する

出題：9

Product safety standards do NOT include:
Response:

A. Evaluation requirements for product safety testing.

B. Performance requirements for products.

C. Product requirements laws passed by government

D. Requirements for general, equipment and component safety.

正解：B 解答を投票する

出題：10

Human will perform more reliably if:
I. They understand what is required and why.
II. The task is challenging and complex.
III. Pressure is applied which penalizes failure.
IV. There are incentives for quality.
Response:

A. II and IV only

B. I and IV only

C. I and III only

D. I and II only

正解：B 解答を投票する

出題：11

A reliability test of 12 pumps is terminated at 1000 hours. There were 5 failures as follows, what is the median rank % for the 4th failure ?

Response:

A. 24.48%

B. 25.62%

C. 29.84%

D. 40.00%

正解：C 解答を投票する

出題：12

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 the environmental test levels for reliability.

D. Develop a matrix of critical component reliability tradeoffs.

正解：A 解答を投票する

出題：13

Reliability predictions can be used for all of the following purpose EXCEPT to Response:

A. Predict life-cycle cost.

B. Compare alternative designs

C. Assess the time remaining to meet a reliability goal.

D. Focus reliability improvement.

正解：C 解答を投票する

出題：14

As the reliability engineer of a medium sized firm, you have developed a reliability test plan for the shop.
The shop manufactures products on a medium batch size basis. The batches range from 30 to 500 pieces per order. The test plan should include all of the following consideration EXCEPT Response:

A. Estimate MTBF values.

B. Provide a safe testing environment.

C. Inspect the majority of parts produced.

D. Discover every failure mode.

正解：C 解答を投票する

出題：15

A system is defined by the following reliability block diagram.