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

出題：1

Maintainability is:
Response:

A. Maintaining a machine in satisfactory working condition.

B. The probability of a system being restored to functional operation within a given period of time.

C. Performing adequate maintenance on a system.

D. Probability of survival of a system for a given period of time.

正解：B 解答を投票する

出題：2

A resistor is rated at 1 watt. One example of using this resistor in a derated condition is using:
Response:

A. Two of the resistors in series.

B. The resistor in a 0.5 watt application.

C. The resistor as a standby unit.

D. The resistor in a 2 watt application.

正解：B 解答を投票する

出題：3

Which of the following are important elements of the concept of risk?
Ⅰ. Damage
Ⅱ. Frequency
Ⅲ. Schedule
Response:

A. I, II, and III

B. I and III only

C. I and II only

D. II and III only

正解：C 解答を投票する

出題：4

Availability of a system is roughly the:
Response:

A. Product of the individual subsystem availabilities.

B. The quotient of the individual subsystem availability.

C. The difference of the individual subsystem.

D. Sum of the individual system availabilities.

正解：A 解答を投票する

出題：5

Probability ratio sequential tests are used for products designed to operate for a long period of time.
This test is primarily based on:
Response:

A. Type I versus type II errors.

B. Truncation of test results.

C. Accept regions versus reject regions.

D. The ratio of an acceptable MTBF to an unacceptable MTBF.

正解：D 解答を投票する

出題：6

FMECA is:
Response:

A. A technique useful for space-government project.

B. A professional engineering organization.

C. A technique to assure that design performance guidelines are fulfilled.

D. A formal technique for review of failure potentials during design.

正解：D 解答を投票する

出題：7

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 kept to a minimum.

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 increased.

正解：B 解答を投票する

出題：8

Which of the following is a primary concern for a reliability engineer who uses publicly available sources for mechanical part-failure rates?
Response:

A. Meeting parts-count requirements

B. Recognizing that the quantity of such data is unlimited.

C. Assuring that the data are in compliance with ISO standards.

D. Finding appropriate data for each application.

正解：D 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

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：11

Which of the following statement is TRUE about environmental stress screening (ESS)?
Response:

A. It is used to validate a design.

B. It is a form of accelerated testing.

C. It involves random sampling

D. It stresses equipment beyond design limits

正解：C 解答を投票する

出題：12

A failure that occurs without being caused by the failure of any other item is known as:
Response:

A. An independent failure.

B. A pattern failure.

C. An intermittent failure.

D. A dependent failure.

正解：A 解答を投票する

出題：13

Customer feedback and data have been gathered on several new unknown failure modes, what would be an appropriate analysis tool to use on the data?
Response:

A. Perform a risk assessment.

B. Conduct a FMECA.

C. Use a pareto chart for failures.

D. Use a FTA.

正解：A 解答を投票する

出題：14

The flat portion of the bathtub curve is a region of chance failures; therefore, for the reliability equation shown below:
Response:

A. Does not apply to this region.

B. Applies only to this region.

C. Applies to the wear out region as well as the flat region.

D. Applies to the entire bathtub curve.

正解：B 解答を投票する

出題：15

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. Update the inspection instruction and retrain receiving inspection.

C. Visit the supplier to assist in determining the root cause of the problem.

D. Issue a Government and Industry Data Exchange Program (GIDEP) alert.

正解：C 解答を投票する

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