Use Real ASQ Achieve the CRE Dumps – 100% Exam Passing Guarantee [Q124-Q148]

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NO.124 As a result of improper machining, a gear-tooth in a vehicle’s transmission breaks causing the transmission to lock up and the vehicle to crash, injuring the driver. The failure mode in this case should be identified by the reliability engineer as the Response:

Injured driver.

Jammed transmission.

Improper machining.

Vehicle crash.

NO.125 Which of the following graphs represents a product that is a good candidate for an accelerated degradation test involving overstress testing?

Response:

Option A

Option B

Option C

Option D

NO.126 A satellite has two redundant control systems, each has a failure rate (lambda) = 1×10 -6 failures/hour. If one of the systems fails, the failure rate for the remaining system increases to 2×10 -5 failures/hour.
What is the reliability of the redundant control systems at 175,000 hours?
Response:

0.8609

0.7796

0.690

0.2507

NO.127 The department having the authority to sign all deviations pertaining to the design of the product is normally:
Response:

Inspection

Manufacturing engineering.

Design engineering.

Contractual

NO.128 A plastics plant operates 8 extruders producing plastic film. Production volume requirements cannot be met if less than 6 extruders are operating. There is a .30 probability that a machine stopping malfunction will occur.
What is the probability that 6 extruders can remain operating throughout the day?
Response:

0.5783

0.4482

0.5518

0.8059

NO.129 All of the following statements concerning statistical inference are true EXCEPT:
Response:

The confidence interval is a range of values which may include the true value of a population parameter.

The confidence interval is normally the statistical tolerance limits of the population parameter.

The point estimate is a single value used to estimate the population parameter.

Estimation is the process of analyzing a sample result in order to predict the value of the population parameter

NO.130 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:

The cable in a 75,000 pound maximum stress application

The cable in a 150,000 pound maximum stress application

The cable in a 225,000 pound maximum stress application

The cable as a parallel component.

NO.131 The continuous improvement process can be guided by several techniques. Which of the following is the BEST approach?
Response:

Use of the PDCA cycle

The original seven quality tools

The new seven quality management tools

Multi-vari charts

NO.132 Human factors in product safety planning are assessed for which of the following reasons?
I. To allocate the proper balance between man and machine.
II. To address the limitations of human beings.
III. To determine the user hardware interaction.
Response:

III only

I and II only

I and III only

I, II and III

NO.133 An employee is injured on the job. The employer has proven to have a good safety and health program.
Generally the employee has which of the following options available to him/her?
Response:

Contributory negligence.

Caveat emptor.

Workman’s compensation.

Caveat venditor.

NO.134 In a software development project, which of the following elements is NOT essential to ensure a reliable product?
Response:

Specifying the software requirements in complete detail.

Ensuring that requirements based testing is performed.

Documenting changes made to the software during development.

Performing a failure mode, effects, and criticality analysis on the software

NO.135 In the area of risk assessment, hazard severity categories are used to provide a measure of the seriousness involved. A system failure causing major environmental damage would be classified as:
Response:

Catastrophic.

Critical

Marginal

Negligible

NO.136 Failure data are analyzed and a proportion of items survive to the end of the test. Data on these types of samples are referred as:
Response:

Parameter data

Non-parameter data.

Control data

Censored Data.

NO.137 A go/no-go device is tested until it fails. If X is the number of tests to first failure with no wear out present, and the probability of success on each test is .99, then the probability that X is greater than 5 is:
Response:

0.9510

0.9410

0.9310

0.9610

NO.138 A consideration for proper part selection is:
I. Parts application and specifications.
II. Selection, control and integration.
III. Derating.
Response:

I only

I and III only

II and III only

I, II and III

NO.139 Failure occur on a system at 75, 79, 83, 85 hours. Assuming normality, one sided and unbiased the lower tolerance limit for 95% reliability with 90% confidence for this sample is:
Response:

96 hours.

60 hours.

100 hours.

63 hours.

NO.140 In general, reliability testing is performed for which of the following reasons?
I. To detect unanticipated failure modes.
II. To compare estimated failure rates to actual failure rates.
III. To monitor reliability growth over time.
IV. To meet or exceed customer expectations.
Response:

I and III only

II and IV only

I, II and III only

I, II, III and IV

NO.141 Who should be chairperson of a design review committee?
Response:

A senior member of management.

The chief designer.

The person best able to make decisions on a design.

The reliability engineer.

NO.142 Failure data collection, analysis, and corrective action:
I. Should be conducted by a competent staff using an electronic computer.
II. Is a requirement of MIL-STD-785.
III. Always pays for itself in the long run.
Response:

I only

II only

I and III only

I, II and III

NO.143 Highly repetitive operations should be assigned to:
Response:

A machine.

An operator.

A machine and operator performing the same task alternately.

An operator assisted by a computer.

NO.144 The following reliability block diagram shows components A, B, C, D and E with reliability Ra, Rb, Rc, Rd and Re, respectively. A or B are system entry points.

On the basis of this information, what is the reliability of the system?
Response:

[1 – (1 – Ra Rb)] Rc [1 – (1 – Rd Re)]

Ra Rc [1 – (1 – Rd Re)] + (1 – Ra) Rb Rc [1 – (1 – Rd) (1 – Re)]

Ra Rb [1 – (1 – Rd) (1 – Re)] Rc (1 – Ra) Rb [1 – (1 – Rd) (1 – Re)]

Ra Rc [1 – (1 – Rd) (1 – Re)] + (1 – Ra) Rb Rc [1 – (1 – Rd) (1 – Re)]

NO.145 In order to sustain a high system reliability in the field, it is BEST to:
Response:

Write detailed reports on major failure modes.

Lubricate the equipment exactly to manufacturing specifications.

Fully analyze all failed components

Follow a preventive maintenance program with scheduled diagnostic checks.

NO.146 In a design team environment, the reliability function can influence product reliability principally by:
Response:

Integrating the reliability requirements into product design.

Developing reliability tests and procedures.

Conducting internal and external failure analyses.

Providing repair and maintenance service information.

NO.147 What percentage of the material is expected to fail?
Response:

1.4%

2.0%

2.3%

8.1%

NO.148 Probability ratio sequential tests are used for products designed to operate for a long period of time.
This test is primarily based on:
Response:

The ratio of an acceptable MTBF to an unacceptable MTBF.

Accept regions versus reject regions.

Type I versus type II errors.

Truncation of test results.

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