Podcast
Questions and Answers
Which approach is recommended to identify failure modes during the design phase?
Which approach is recommended to identify failure modes during the design phase?
What aspect of the design and development process is emphasized as crucial for integration?
What aspect of the design and development process is emphasized as crucial for integration?
Which method is NOT explicitly mentioned as a part of the Design Evaluation methods for reliability?
Which method is NOT explicitly mentioned as a part of the Design Evaluation methods for reliability?
What is a common phenomenon observed in electronic products despite having good design?
What is a common phenomenon observed in electronic products despite having good design?
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What is advised regarding the strategy of testing in the design phase?
What is advised regarding the strategy of testing in the design phase?
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Which definition of quality emphasizes an item's ability to serve its intended purpose?
Which definition of quality emphasizes an item's ability to serve its intended purpose?
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What is the primary aspect that reliability measures?
What is the primary aspect that reliability measures?
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How is quality evaluated according to the concepts provided?
How is quality evaluated according to the concepts provided?
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Which measure would NOT be used to evaluate reliability?
Which measure would NOT be used to evaluate reliability?
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Why is the concept of 'loss to society' significant in quality management?
Why is the concept of 'loss to society' significant in quality management?
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In reliability evaluation, what does Bx life refer to?
In reliability evaluation, what does Bx life refer to?
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What does the term 'defect levels' usually refer to in quality measurements?
What does the term 'defect levels' usually refer to in quality measurements?
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What aspect does conformance to requirements primarily assess?
What aspect does conformance to requirements primarily assess?
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Which stress screening method aims to minimize early life failures due to manufacturing defects?
Which stress screening method aims to minimize early life failures due to manufacturing defects?
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What model can be utilized for predicting reliability that involves analyzing the physical phenomena behind failures?
What model can be utilized for predicting reliability that involves analyzing the physical phenomena behind failures?
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What is the purpose of analyzing field data after product launch?
What is the purpose of analyzing field data after product launch?
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Which statistical tool is mentioned for analyzing failure data?
Which statistical tool is mentioned for analyzing failure data?
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What should be prioritized for improvements when evaluating subsystems?
What should be prioritized for improvements when evaluating subsystems?
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What does MTTR stand for in the context of reliability monitoring?
What does MTTR stand for in the context of reliability monitoring?
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What is a key action to take when field failures are observed?
What is a key action to take when field failures are observed?
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Which method is NOT typically used for subsystem evaluation and validation?
Which method is NOT typically used for subsystem evaluation and validation?
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What is the maximum cognitive level identified in the hierarchy of cognitive skills?
What is the maximum cognitive level identified in the hierarchy of cognitive skills?
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Which cognitive level comes just before 'Evaluate' in the hierarchy?
Which cognitive level comes just before 'Evaluate' in the hierarchy?
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If 'Remember' is the lowest cognitive level in this hierarchy, which skill requires a deeper comprehension of the material?
If 'Remember' is the lowest cognitive level in this hierarchy, which skill requires a deeper comprehension of the material?
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In what order do the cognitive levels progress from lowest to highest, starting with 'Remember'?
In what order do the cognitive levels progress from lowest to highest, starting with 'Remember'?
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What cognitive skill is primarily focused on synthesizing information to form new concepts?
What cognitive skill is primarily focused on synthesizing information to form new concepts?
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What is the primary responsibility of ASQ members regarding the public?
What is the primary responsibility of ASQ members regarding the public?
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According to the ASQ Code of Ethics, what should members do regarding their area of competence?
According to the ASQ Code of Ethics, what should members do regarding their area of competence?
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Which of the following values is emphasized in the ASQ Code of Ethics?
Which of the following values is emphasized in the ASQ Code of Ethics?
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What is a critical tenet of the ASQ Code of Ethics regarding professional duties?
What is a critical tenet of the ASQ Code of Ethics regarding professional duties?
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What does the ASQ Code of Ethics require from its members in relation to their employers?
What does the ASQ Code of Ethics require from its members in relation to their employers?
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In the context of the ASQ Code of Ethics, which of the following actions is prohibited?
In the context of the ASQ Code of Ethics, which of the following actions is prohibited?
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Which of the following best defines the overarching goal of the ASQ members in terms of public engagement?
Which of the following best defines the overarching goal of the ASQ members in terms of public engagement?
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Which statement reflects the recommended conduct for ASQ members when serving clients?
Which statement reflects the recommended conduct for ASQ members when serving clients?
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Study Notes
Quality
- Quality is about how well a product or service meets its intended purpose.
- It's measured by how much the product or service satisfies stated or implied needs.
- Fitness for use (Juran) means the product is useful for its intended purpose
- Conformance to requirements (Crosby) refers to the product meeting specified standards.
- Loss to the society after a product is shipped (Taguchi) considers the impact of product defects.
- Quality is measured by defect levels, like parts per million (ppm) when products reach customers.
Reliability
- Reliability is how likely a product is to perform as intended for the specified time under given conditions.
- It is measured by the probability of failure-free performance.
- Bx life is the time period during which x% of parts are likely to fail.
Reliability: Design and Development
- Design and development should include reliability aspects through methods like Design Failure Mode and Effects Analysis (DFMEA), design reviews, reliability validation and demonstration tests.
- Highly Accelerated Life Tests (HALT) are useful for discovering failure modes early in the design phase.
- Test to failure is recommended by many experts because it provides valuable insights for continuous improvement.
- **Burn-in, Environmental Stress Screening, and Highly Accelerated Stress Screening (HASS) ** methods help reduce early life failures due to manufacturing defects and uncertainties.
Reliability: Development
- Reliability targets are allocated for subsystems based on the system reliability goals.
- Subsystem evaluation and validation are guided by these targets.
- These targets also define reliability and durability goals for suppliers.
- Analysis of past field and in-house test data is valuable in determining target allocation.
- Analytical models and reliability predictions can be used during development, including computer-aided design (CAD), finite element analysis, physics of failure (POF) models, and simulation studies.
Reliability: After Launch
- Continual reliability monitoring is essential after product launch.
- Field data analysis using Weibull analysis or other statistical tools helps estimate failure rates and warranty costs.
- Root cause analysis of field failures should be performed to identify and implement corrective or preventive actions.
- Maintainability and availability goals should also be monitored by calculating and tracking Mean Time To Restore (MTTR).
- Unforeseen failures in the field are considered early warning signs requiring attention.
ASQ Code of Ethics
- Honesty and impartiality in serving the public, employers, customers, and clients is paramount,
- Increasing competence and prestige of the quality profession is a priority,
- Utilizing knowledge and skills for human welfare is a guiding principle.
ASQ Code of Ethics: Tenets
- Public Safety: Holding paramount the safety, health, and welfare of the public in professional duties.
- Competence: Performing services only within areas of competence.
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Description
This quiz covers fundamental concepts of quality and reliability in products and services. It explores definitions such as fitness for use, conformance to requirements, and the measurement of reliability. Understand how quality is assessed through defect levels and the importance of integration in design and development.
