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MCQs

Total Questions : 43 | Page 2 of 5 pages
Question 11. Reliability is a measure of how quality changes over time.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 12. System reliability for components kept in parallel ______ as the number of components increases.
  1.    Increases
  2.    Decreases
  3.    Remains unchanged
  4.    Cannot be determined
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 13. The reliability of the entire system is called ______
  1.    Partial reliability
  2.    Isolated reliability
  3.    Closed reliability
  4.    System reliability
 Discuss Question
Answer: Option D. -> System reliability
Answer: (d).System reliability
Question 14. System reliability for components kept in series _______ as the number of components increases.
  1.    Increases
  2.    Decreases
  3.    Remains unchanged
  4.    Cannot be determined
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases
Question 15. Reliability is the probability of a system or service to perform its intended function satisfactorily over a specific period of time under specific conditions.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 16. In series configuration of five components, the entire system will fail if ______
  1.    any two components fail
  2.    any three components fail
  3.    any one of the components fail
  4.    any four components fail
 Discuss Question
Answer: Option C. -> any one of the components fail
Answer: (c).any one of the components fail
Question 17. In parallel configuration of five components, the entire system will fail if _____
  1.    any two components fail
  2.    any three components fail
  3.    all the components fail
  4.    any one components fail
 Discuss Question
Answer: Option C. -> all the components fail
Answer: (c).all the components fail
Question 18. What does the graph of ‘bathtub curve’ represent?
  1.    Failure rate v/s Mean
  2.    Failure rate v/s Time
  3.    Failure rate v/s Distance
  4.    Failure rate v/s Velocity
 Discuss Question
Answer: Option B. -> Failure rate v/s Time
Answer: (b).Failure rate v/s Time
Question 19. The life-test sample plans that are terminated when a pre-assigned number of failures occur in the sample is _____
  1.    Failure-terminated
  2.    Time-terminated
  3.    Operation-terminated
  4.    Sequential
 Discuss Question
Answer: Option A. -> Failure-terminated
Answer: (a).Failure-terminated
Question 20. A system consists of four components in series with two components having reliability of 0.9 and two others having reliability of 0.8 at the end of one year. What is the system reliability at the end of one year?
  1.    0.9000
  2.    0.8000
  3.    0.7000
  4.    0.5184
 Discuss Question
Answer: Option D. -> 0.5184
Answer: (d).0.5184

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