An electrical power system consists of four major components with reliabilities of 0.99,0.90,0.80,and 0.95.If the designers want to improve the reliability of the system by adding a backup component,which component should get the backup to achieve the highest reliability?
A)Component 1
B)Component 2
C)Component 3
D)Component 4

Question

Quizplus · Accepted Answer

Adding a backup to the component with the lowest reliability (0.80) will result in the greatest improvement in overall system reliability. Component 3 has the lowest reliability, so adding a backup to it would be the most effective choice.

An Electrical Power System Consists of Four Major Components with Reliabilities