29) Increasing the number of parts or components in a product tends to reduce its reliability. Why is this true only when adding components in series? 30) Explain carefully how redundancy improves product reliability. 31) “High reliability can be achieved in a product without having high reliability in the component parts. In fact, any reliability target, no matter how high, can be achieved with only mediocre parts, so long as enough of them are present.” Discuss; an example may help. 32) What is FR(N)? How is it calculated? How are FR(N) and MTBF related?
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