[Aug-2021] CRE Pre-Exam Practice Tests | Exam Questions and Answers for ASQ Certification Study Guide
Certified Reliability Engineer (CRE) Certification Sample Questions
NEW QUESTION 140
Which of the following is a model used for monitoring reliability growth?
Response:
- A. Arrehenius
- B. Duane
- C. Lognormal
- D. Normal
Answer: B
NEW QUESTION 141
A company has produced a new module. The failure data on 40 returns are shown below.
Which of the following is the first step in the review of this situation ?
Response:
- A. Identify the field service personnel who handled the returns.
- B. Find the median of the data set.
- C. Determine the location in which the failure occurred.
- D. Categorize the data by using a Pareto analysis.
Answer: C
NEW QUESTION 142
For a reliability plan to be most effective, the reliability tasks should be integrated with which of the following plan?
Response:
- A. Product design and development.
- B. Product sales.
- C. Reliability centered maintenance.
- D. Product distribution
Answer: A
NEW QUESTION 143
The following fault tree diagram was developed by a team.
The probability are as follow:
A1 = 0.90 B1 = 0.90 C1 = 0.80
A2 = 0.80 B3 = 0.80 C2 = 0.70
A4 = 0.70
The likelihood that the system fault will occur is
Response:
- A. 0.5034
- B. 0.4977
- C. 0.3073
- D. 0.3686
Answer: B
NEW QUESTION 144
A company has produced a new module. The failure data on 40 returns are shown below.
If the time to failure follows a normal distribution, what is the probability that time to failure exceeds 20 hours ?
Response:
- A. 0.972
- B. 0.950
- C. 0.050
- D. 0.028
Answer: D
NEW QUESTION 145
Measures of availability include:
I. Effectiveness.
II. Inherent.
III. Achieved.
IV. Dependability.
V. Capability.
Response:
- A. I, III and IV
- B. II and III only
- C. III, IV and V
- D. II, III and IV
Answer: B
NEW QUESTION 146
What is the MOST vital information to know about a system in order to perform a hardware FMECA?
Response:
- A. Full process information.
- B. The details of the system.
- C. The details of the system.
- D. The details of the subsystems.
Answer: C
NEW QUESTION 147
A system is turned off every 30 days for 5 minutes for on line maintenance. If the probability of system failure due to hardware failure is negligible, what is the system's unavailability?
Response:
- A. 0.0333
- B. 1.157 × 10 -4
- C. 3.472 × 10 -4
- D. 0.999
Answer: B
NEW QUESTION 148
Which of the following techniques is MOST beneficial in tracking a process to determine whether corrective action should be taken?
Response:
- A. Pareto analysis.
- B. Control charting.
- C. Time series plotting.
- D. Trend analysis.
Answer: B
NEW QUESTION 149
Random sampling plans are based on which of the following assumption?
Response:
- A. Every item has an equal chance of being selected.
- B. A specific dependency model has been selected.
- C. The process is unstable.
- D. The data are accurate.
Answer: A
NEW QUESTION 150
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:
- A. 0.9510
- B. 0.9610
- C. 0.9410
- D. 0.9310
Answer: A
NEW QUESTION 151
For equal length missions an increase in the MTBF will yield:
I. An increase in availability.
II. An increase in reliability.
III. A decrease in reliability.
IV. A decrease in availability.
Response:
- A. III
- B. I
- C. I and II
- D. III and IV
Answer: C
NEW QUESTION 152
The two principal measures of failure during risk assessment are which of the following?
Response:
- A. Failure analysis and failure effects.
- B. Failure mode and failure mechanism.
- C. Failure severity and failure probability.
- D. Failure method and failure mode.
Answer: C
NEW QUESTION 153
An air handling system has a MTBF of 8000 hours, MTBMct of 120 hours, and MMT (mean maintenance action time) of 230 hours. Determine the potential availability.
Response:
- A. 0.9852.
- B. 0.9721.
- C. 0.9866.
- D. 0.9575.
Answer: A
NEW QUESTION 154
Reliability prediction is:
Response:
- A. A popular method as simulation theory.
- B. A continuous process starting with paper predictions.
- C. More important than reliability attained in the field.
- D. A one time estimation process.
Answer: B
NEW QUESTION 155
Which of the following statements is TRUE about probability distributions?
Response:
- A. The variance is used to measure the central tendency
- B. The 3rd moment about the mean is used to measure the kurtosis
- C. 4th moment about the mean is used to measure the skewness
- D. The median is used to measure the central tendency
Answer: D
NEW QUESTION 156
Reliability can be specified in terms of all of the following EXCEPT:
Response:
- A. Cost of failure
- B. Stress to failure.
- C. Cycles to failure.
- D. Time to failure.
Answer: A
NEW QUESTION 157
Design review should be a process to ensure and/or develop more reliable design. Which of the following person(s), if any, should work with the designer during the design process?
Response:
- A. Design supervisor.
- B. Reliability engineer.
- C. Designer only
- D. Management team.
Answer: B
NEW QUESTION 158
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