⭐️ Body of knowledge (BOK)

Question 1

What are the topics in the BOK? (5)

Answer 1

1 Reliability Fundamentals
2 Risk Management
3 Statistical Concepts
4 Planning, Testing and Modeling
5 Lifecycle Reliability

Question 2

1 Reliability Fundamentals (2)

Answer 2

Foundations:

1 Leadership
2 Reliability

Question 3

1-1 Leadership (8)

Answer 3

1 Benefits of reliability engineering
2 Interrelationship of Safety, Quality and Reliability

3 Responsibilities
4 Role and responsibilities in the production lifecycle
5 Function in engineering

6 Ethics

7 Supplier assessments
8 Performance monitoring

Question 4

1-2 Reliability Foundations (10)

Answer 4

1 Basic reliability terminology

2 Drivers of requirements and targets
3 CAPA (Corrective and preventive action)
4 Root cause analysis

5 Product lifecycle eningeering stages
6 Economics of product maintainability and availability
7 Cost of poor reliability

8 Quality trianagle
9 Six sigma methodologies
10 Systems engineering and integration

Question 5

2 Risk Management (3)

Answer 5

1 Identification
2 Analysis
3 Mitigation

Question 6

2-1 Risk Identification (2)

Answer 6

1 Risk management techniques

2 Types of risk

Question 7

2-2 Analysis (6)

Answer 7

1 FTA (Fault tree analysis)
2 FMEA (Failure mode and effects analysis)

3 Common mode failure analysis
4 Hazard analysis

5 Risk matrix
6 System safety

Question 8

3 Statistical Concepts (2)

Answer 8

1 Basic Concepts

2 Data Management

Question 9

3-1 STAT Basic Concepts (7)

Answer 9

1 Basic statistics
2 Basic propability concepts
3 Propability distributions
4 Propability functions

5 Sampling plans for statistics and reliability testing
6 Process control (SPC) and capacility studies (Cp, Cpk)
7 Confidence and tolerance intervals

Question 10

3-2 Data Management (6)

Answer 10

1 Source and uses of reliability data
2 Types of data
3 Data collection methods

4 Data summary and reporting
5 Failure analysis methods
6 FRACAS (Failure reporting, analysis and corrective action system)

Question 11

4 Planning, Testing and Modeling (3)

Answer 11

1 Planning
2 Testing
3 Modelling

Question 12

4-1 Reliability Planning (5)

Answer 12

1 Reliability test strategies

2 Environmental and conditions of use factors
3 Failure consequence
4 Failure criteria

5 Test environment

Question 13

4-2 Reliability Testing (5)

Answer 13

1 Accelerated life test

2 Stress screening (100%)
3 Qualification / Demonstration testing

4 Degredation
5 Software Testing

Question 14

4-2-1 Accelerated life test (4)

Answer 14

1 single vs. multiple-stress
2 sequencial vs. step stress

3 HALT
4 margin tests

Question 15

4-2-2 Stress screening / 100% (3)

Answer 15

1 ESS
2 HASS
3 burn-in tests

Question 16

4-2-3 Qualification/demonstration testing (2)

Answer 16

1 sequencial tests

2 fixed-length tests

Question 17

4-2-4 Degredation testing (1)

Answer 17

1 wear-to-failure

Question 18

4-2-5 Software Testing (4)

Answer 18

1 white-box
2 black-box
3 operational profile
4 fault injection

Question 19

4-2-3 Reliability Modelling (5)

Answer 19

1 Reliability block diagrams and models

2 Physics of failure and failure mechanisms
3 Failure models

4 Reliability prediction methods
5 Design prototyping

Question 20

5 Lifecycle Reliability (3)

Answer 20

1 Reliability Design Techniques
2 Parts and Systems Development
3 Maintainability

Question 21

5-1 Reliability Design Techniques (7)

Answer 21

1 V&V (Design evaluation techniques)
2 Stress-strength analysis
3 DOE (Design of experiments)

4 Reliability optimization
5 Human factors

6 DFX (Desing for X)
7 Design for Reliability

Question 22

5-2 Parts and Systems Development (2)

Answer 22

1 Materials and components selection techniques

2 Parts standardization and system simplification

Question 23

5-3 Maintainability (3)

Answer 23

1 Maintenance strategies
2 Preventive maintenance analysis
3 Corrective maintenance analysis

Question 24

1-2-1 Basic reliability terminology (4)

Answer 24

1 MTTF, MTBF
2 MTTR, service interval,
3 maintainability, availability, failure rate,
4 reliability and bathtub curve

Question 25

1-2-5 Product lifecycle eningeering stages (4)

Answer 25

1 concept/design 2 development/test 3 introduction, growth 4 maturity, decline

Question 26

3-1-1 Basic statistics (3)

Answer 26

1 population, parameter, statistic, sample, 2 the central limit theorem, 3 parametric and non parametric

Question 27

3-1-2 Basic propability concepts (3)

Answer 27

1 independence 2 mutually exclusive 3 propability

Question 28

3-1-4 Propability functions (3)

Answer 28

1 CDF`s 2 PDF`s 3 hazard functions

Question 29

3-1-3 Propability distributions (3)

Answer 29

1 binominal, Poisson 2 exponential, ​Weibull 3 normal, log-normal

Question 30

3-2-2 Types of data (4)

Answer 30

1 attributes vs. variables, (go/no-go vs. measurement information) 2 discrete vs. continous, 3 censored vs. complete 4 unvariate vs. multivariate

Question 31

3-2-3 Data collection methods (4)

Answer 31

``` 1 surveys (e.g. questionnaire ..) 2 automated tests, 3 automated monitoring 4 reporting tools ```

Question 32

3-2-5 Failure analysis methods (4)

Answer 32

1 mechanical, 2 materials, 3 physical analysis 4 SEM

Question 33

3-2-1 Source and uses of reliability data (3)

Answer 33

1 prototype, ​development, test, 2 field, warranty, 3 published, etc.

Question 34

4-1-1 Reliability test strategies (4)

Answer 34

``` 1 truncation (concept of censoring) 2 test to failure, ``` 3 degredation, 3 growth plan 4 TAAF (Test, Analyze And Fix)

Question 35

4-1-2 Environmental and conditions of use factors (3)

Answer 35

1 temperature, 2 humidity 3 vibration