Fault Diagnosis and Management MCQs

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1. What is the primary goal of fault diagnosis in engineering?
(A) To identify and correct system faults
(B) To prevent all system failures
(C) To maximize system performance
(D) To enhance system aesthetics

2. Which phase of fault diagnosis involves observing and gathering symptoms related to system behavior?
(A) Isolation
(B) Identification
(C) Detection
(D) Correction

3. Which type of fault occurs when a component deviates from its intended function without complete failure?
(A) Permanent fault
(B) Stuck-at fault
(C) Transient fault
(D) Intermittent fault

4. What is the purpose of fault isolation in the fault diagnosis process?
(A) To detect the presence of faults
(B) To identify the root cause of faults
(C) To prevent future faults
(D) To repair faulty components

5. Which technique involves injecting test signals into a system to observe its response and detect faults?
(A) Signature analysis
(B) Built-in self-test (BIST)
(C) Model-based diagnosis
(D) Failure modes and effects analysis (FMEA)

6. Which type of fault is characterized by a component remaining in an incorrect state indefinitely?
(A) Stuck-at fault
(B) Intermittent fault
(C) Transient fault
(D) Permanent fault

7. Which fault diagnosis method uses mathematical models to predict system behavior and identify faults?
(A) Analytical methods
(B) Statistical methods
(C) Signature analysis
(D) Built-in self-test (BIST)

8. What is the primary purpose of fault detection algorithms in automated systems?
(A) To eliminate human error
(B) To increase system complexity
(C) To detect and locate faults
(D) To reduce system efficiency

9. Which approach uses historical data and machine learning to predict and prevent faults?
(A) Prognostics and health management (PHM)
(B) Built-in self-test (BIST)
(C) Failure modes and effects analysis (FMEA)
(D) Model-based diagnosis

10. In fault diagnosis, what does FMEA stand for?
(A) Fault Management and Error Assessment
(B) Failure Modes and Effects Analysis
(C) Faulty Module Elimination Algorithm
(D) Functional Mode and Event Analysis

11. Which technique systematically identifies potential failure modes and their effects?
(A) FMEA
(B) Statistical methods
(C) Analytical methods
(D) Built-in self-test (BIST)

12. Which fault detection method involves monitoring system parameters continuously against thresholds?
(A) Built-in self-test (BIST)
(B) Statistical methods
(C) Condition-based monitoring (CBM)
(D) Signature analysis

13. Which fault diagnosis technique creates a hierarchical model to localize faults?
(A) Analytical methods
(B) Fault tree analysis (FTA)
(C) Model-based diagnosis
(D) Built-in self-test (BIST)

14. Which fault detection technique relies on statistical analysis of system data?
(A) Built-in self-test (BIST)
(B) Analytical methods
(C) Signature analysis
(D) Statistical methods

15. Which tool identifies potential root causes based on historical data?
(A) Root Cause Analysis (RCA)
(B) Failure Modes and Effects Analysis (FMEA)
(C) Fault Tree Analysis (FTA)
(D) Built-in self-test (BIST)

16. What is the primary objective of fault tolerance?
(A) To ensure reliability in presence of faults
(B) To identify root causes
(C) To enhance performance
(D) To prevent all failures

17. Which fault diagnosis approach involves physical inspection of components?
(A) Manual fault diagnosis
(B) Built-in self-test (BIST)
(C) Failure Modes and Effects Analysis (FMEA)
(D) Analytical methods

18. What does CBM stand for in fault diagnosis?
(A) Condition-Based Maintenance
(B) Continuous Built-in Monitoring
(C) Component-Based Monitoring
(D) Controlled Behavior Modeling

19. Which fault diagnosis technique prioritizes failures based on severity and likelihood?
(A) Root Cause Analysis (RCA)
(B) Failure Modes and Effects Analysis (FMEA)
(C) Fault Tree Analysis (FTA)
(D) Built-in self-test (BIST)

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