Question 66

A series system whose reliability at 5 hours is 0.80, has three components with these historical constant failure rates:
λ 1 = failure rate for component 1 = 0.04 failures/hour
λ 2 = failure rate for component 2 = 0.07 failures/hour
λ 3 = failure rate for component 3 = 0.01 failures/hour
Three of the four answers are the three component reliabilities at 5 hours. Which is incorrect?
Response:
  • Question 67

    The techniques of design control are:
    Response:
  • Question 68

    In order to attain a high order of series reliability:
    Response:
  • Question 69

    Preliminary hazard analysis:
    I. Is a review of safety problems prior to production.
    II. Is normally done at a time when there is little design detail.
    III. Can be used to identify the principal hazards when the product is first conceived.
    Response:
  • Question 70

    Which of the following provides the maximum benefit of parts standardization?
    Response: