Reliability Engineering MCQs
Reliability Engineering MCQs
Try to answer these 100+ Reliability Engineering MCQs and check your understanding of the Reliability Engineering subject.
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1: What term refers to testing at higher than normal stress levels?
A. Accelerated life testing
B. Extreme life testing
C. Extraordinary life testing
D. Maximum life testing
2: Where does accelerated life testing come from?
A. Genetic engineering
B. Nano machines
C. A.D.D. testing
D. Life data
E. Genetics
3: What does AMPM stand for?
A. American Motors Corporation
B. American Motor Speed Association
C. AMSAA maturity prediction model
D. American Multi-Service Assurance Association
E. Annual Member Meeting of Members
4: What does the acronym AMSA stand for?
A. American Mosaic Society
B. Army Material Systems Analysis Activity
C. Association of Military Service Academies
D. American Metal Scrap Association
E. American Motorcyclist Association
5: What stands for analysis of variance?
A. T-test
B. ANOVA
C. Attribution error
D. SEM
E. The t-test
6: What is ANOVA used for?
A. Testing the difference between two means
B. Determining whether there is a difference in means
C. Constructing a multiple regression model
D. Analysis of variance
E. Testing the difference between more than two means
7: His statement prompted a downward spiral for what value?
A. A greater sense of community
B. Bitcoin
C. Liberty
D. Morality
E. Democracy
8: What did Dogecoin rally by after Musk's tweets?
A. About 100 percent
B. About 20 percent
C. About 80 percent
9: What do people use to keep track of projects?
A. Timeline
B. Project schedule
C. Analysis plan
D. Task list
10: Who developed the Arrhenius model?
A. Johannes Michael Faraday
B. Svante Arrhenius
C. James Clerk Maxwell
D. J.J. Thomson
E. Jakob von Uexküll
11: What is the name of the model originally used to establish a relationship between temperature and reliability?
A. Arrhenius model
B. Carnot model
C. Ideal gas model
D. Kelvin model
E. Carnot heat engine model
12: What does "maintainability" mean?
A. How easy it is to use
B. How quickly it can be repaired
C. How easy it is to modify
D. How often it needs to be repaired
E. How much work it requires
13: What is the ability of an item to function when needed?
A. The probability that an item will be able to function
B. The quality of an item that will make it able to function
C. The ability of an item to resist damage
D. The reliability of an item that will make it able to function
14: What percentage of the population will have failed the item by 100 hours of operation?
A. 50%
B. 30%
C. 10%
D. 20%
E. 25%
15: A diagram that represents how the components, represented by "blocks," are arranged and related reliability-wise in a larger system is referred to as what?
A. A system diagram
B. A reliability block diagram or RBD
C. A functional block diagram
D. A wiring diagram
E. A block diagram
16: What is another name for right-censoring?
A. Political correctness
B. Left-censoring
C. The right-hemisphere bias
D. Liberal bias
E. The left-hemisphere bias
17: What do all censoring schemes have in common?
A. They are all susceptible to error
B. They all have some level of inaccuracy
C. Not all of the data points represent exact failure times
D. They all reduce freedom of expression
E. They all rely on human interpretation
18: The failure modes are considered to be what to each other to see which one will cause the item to fail?
A. Competing
B. Temperature
C. Manufacturing
D. Load
E. Power
19: What is represented as a series reliability system?
A. A system that will indicate when items are no longer needed
B. A system that tests items to determine how often they produce correct results
C. Items that fail due to more than one failure mode
D. Items that have a fixed number of failures
E. A system that will indicate when items have failed
20: What does "complete data" mean?
A. Data that consists of only exact failure times
B. Data that has been collected in a timely manner
C. Data that is completely accurate
21: What does the "end of data" refer to?
A. The end of a project
B. The completion of a set of data
C. Exact failure times
22: A block diagram that cannot be reduced to series and/or parallel systems is called what?
A. System with delays
B. Complex system
C. Serial system
D. System with feedback
E. Parallel system
23: What can be reduced to a series and/or parallel system but is not a complex system?
A. Chemical equation
B. Thermodynamic model
C. Block diagram
D. Circuit
E. Flowchart
24: How many hours has an item been successfully operating?
A. 600
B. 300
C. 100
D. 500
E. 1000
25: When a product has successfully operated for a certain amount of time, what is the probability that it will operate successfully for the next specified amount of time?
A. Conditional reliability
B. Sample size
C. Conjugate reliability
D. Time to failure
E. Predictive validity
26: What is a measure of the precision of a statistical estimate referred to as?
A. Confidence bounds
B. Margin of error
C. Standard error
D. Mean
27: How many reliability tests are performed on the product?
A. Five
B. Ten
C. Nine
D. None
E. Eight
28: What does the term "contour plot" refer to?
A. A graphical representation of the possible solutions to the likelihood ratio equation
B. A visualization technique used to depict data with varying frequency
C. A graphical representation of the data points within a given sample
D. A graphical representation of the results of a Chi-square test
E. A graphical representation of the variation in a population
29: How is the contour plot used to make comparisons between two different data sets?
A. To determine the trend of data
B. To identify outliers
C. To determine confidence bounds
D. To compare shapes
30: What is the plan used to keep track of characteristics that affect a product during the manufacturing process?
A. Process plan
B. Material flow plan
C. Control plan
D. Sequence plan
31: What is the model used to analyze data with multiple stress types and/or situations where the stress varies with time?
A. Response surface model
B. Catastrophe model
C. Job stress model
D. Time-variant response model
E. Cumulative damage model
32: What does the ALC model stand for?
A. Accelerated life testing model
B. Advanced life support model
C. Accelerated life cycle model
D. Advanced locomotive control model
E. Advanced life support protocol
33: What type of analysis looks at probability of failure?
A. Cause and effect analysis
B. Probability analysis
C. Criticality analysis
D. Failure mode and effects analysis
E. Failure analysis
34: How is the resulting prioritization used to determine corrective actions?
A. To prioritize corrective actions
B. To determine the corrective actions to take
C. To determine the sequence and time-frame
D. To communicate corrective actions to the affected stakeholders
35: A function obtained by what?
A. Normalizing the input data
B. Taking the derivative of the failure distribution pdf
C. Integrating the failure distribution pdf
D. Exponential weighting
E. Computing the cumulative hazard function
36: What is the law of total probability used for?
A. Determining sample size
B. Determining the chance of success
C. Decomposition method
D. Determining how likely something is
E. Determining the probability of an event
37: What is a technique that uses the performance measurements of a product to predict the point at which each unit in the sample will fail?
A. Statistical process control
B. Failure analysis
C. Failure mode and effects analysis
D. Degradation analysis
E. Pareto charting
38: A product that has high reliability, it is not possible to test each unit to failure under what conditions?
A. High risk conditions
B. Failed conditions
C. Extreme conditions
D. Normal conditions
39: An FMEA performed with the objective of improving the design of a component or subsystem is known as what?
A. Failure FMEA
B. Failure Mode and Effects Analysis
C. Fault Mode and Effect Analysis
D. Fault FMEA
E. Design FMEA
40: What is the objective of an FMEA performed on a subsystem or component?
A. Improving the design
B. Determining the cause of failures
C. Detecting potential failures
D. Determining the impact of failures
E. Testing the component
41: What is the name of a process that involves incorporating reliability engineering practices into the design process?
A. Design assurance
B. Design for reliability
C. Failure analysis
D. Reliability engineering
42: What sort of process is DFR?
A. A process in which a product is subjected to multiple rounds of reliability testing
B. A process that uses computer simulation to study the reliability of products
C. A process in which a product is reprocessed to improve its reliability
D. A process in which duplicate products are produced to establish a baseline for comparison
E. A process in which a set of reliability engineering practices are utilized early in a product's design
43: What methodology uses a worksheet similar to the FMEA worksheet?
A. DRBFM
B. ABCD
C. PERT
D. 5S
44: What type of ratings are used to estimate the likelihood of prior detection?
A. Qualitative
B. Quantitative
C. Probabilistic
D. Neither
45: What do detection ratings attempt to estimate?
A. The probability of a given cause of failure leading to a detection rating
B. The likelihood of prior detection for each cause of failure
C. The likelihood of detecting a failure for each cause
D. The number of failures that will be detected for each type of cause
E. The number of potential causes of failure
46: What is the amount of time a repairable unit is not operating?
A. Hours
B. Failures
C. Minutes
D. Downtime
E. Outages
47: The AMSAA model uses a relationship between what two values?
A. Cumulative test time and cumulative pass rate
B. Cumulative test time and cumulative failures
C. Cumulative test time and average grade
D. Cumulative test time and percentage of students achieving a standard
48: What type of model does the Duane model use?
A. Reliability growth model
B. Time-series model
C. Cumulative model
D. Cumulative distribution function
E. Life-cycle model
F. Umulative test time and number of questions
49: What is the probability of the union of all mutually exclusive events that yield a system failure?
A. Frequencies
B. Unreliability
C. Probability
50: The event space method is used to determine what?
A. The ability of a system to produce stable output
B. The distribution of weather patterns
C. The organization of knowledge within a system
D. The spatial distribution of a population
E. The reliability of complex systems
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Reliability Engineering MCQs
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Questions d'ingénierie de la fiabilité en langues françaises
Questões de Engenharia de Confiabilidade em Língua Portuguesa
Fragen zur Zuverlässigkeitstechnik in deutscher Sprache
中文（简体）语言的可靠性工程问题
أسئلة هندسة الاعتمادية باللغات العربية
Soal Rekayasa Reliabilitas dalam bahasa Indonesia
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