Question

True or false?

1) The reliability of a series subsystem is expressed as the product of the reliabilities of the individual contributors to the series.?

2) One of the advantages of the "Playback Period" decision making method is that it takes into account the time value of money.?

Answer 1

1)

True - The reliability of a series subsystem is expressed as the product of the reliabilities of the individual contributors to the series.

For Series Components with reliability R1, R2, ..., Rn ,  the reliability of the whole system is,

R = R1 x R2 x .... x Rn

2)

False - The "Playback Period" decision making method does not takes into account the time value of money. It treats all all cash flows as equal though they occur in different periods.