A system is to be composed of 5 identical components in series. What is the lowest reliability component that can be used in order to have an overall system reliability of 0.90?
A) 0.98
B) 0.97
C) 0.96
D) 0.95
E) 0.94

Question

Quizplus · Accepted Answer

The overall system reliability is the product of the reliabilities of the individual components. Therefore, the reliability of each component must be at least 0.90 / 5 = 0.98.

A System Is to Be Composed of 5 Identical Components