Question 66

Develop the fault tree analysis for a candy dispensing machine. There are two contributing subsystems, both of them must fail for the system to fail. The electronic release has Pf = 0.04 and the coil spring release has Pf = 0.06. What is the system's probability of failure?

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  • Question 67

    The department having the authority to sign all deviations pertaining to the design of the product is normally:
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  • Question 68

    The failure rate for an IC chip is 0.0023 per hour of operation. Calculate the MTBF given that the failure rate is constant.
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  • Question 69

    Total system effectiveness can be predicted during the conceptual or development design by considering three main elements of reliability. Which of the four elements does NOT apply?
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  • Question 70

    Design review should be a process to ensure and/or develop more reliable design. Which of the following person(s), if any, should work with the designer during the design process?
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