$1.$ Why is preventive maintenance in general is more effective than other types of

maintenance strategies?

$2.$ Visit a plant near your area and identify the need for CBM$.$ List the diagnostic

techniques the plant needs. Identify the type of monitoring and equipment

needed to make the CBM operational.

$3.$visit a nearby plant and select a critical equipment and design a planned

maintenance program for it$.$

$5.$ An equipment time to failure follows an exponential distribution with mean

equal $500$ days. The cost of preventive and failure maintenance are $$50$ and

$$300,$ respectively. Determine t$,$ the optimal time for preventive replacement

using the following policies:

$($a$)$ Type I policy

$($b$)$ Type II policy