A Microwave Has a Mean Time Between Failures of 157

question 80

Multiple Choice

A microwave has a mean time between failures of 157 and mean time to repair of 17.In this case,the availability is ______.

• A)0.902
• B)0.920
• C)0.960
• D)0.930

---

Definitions:

Lightning

An electrostatic discharge during a thunderstorm that results in a bright flash of electricity traveling between clouds or between a cloud and the ground.

Industrial Smog

Air pollution resulting from industrial activities, characterized by the presence of smoke and harmful gases, particularly sulfur dioxide and particulate matter.

Hydroelectricity

The generation of electricity using the flow of water through turbines in dams.

Coal

Coal is a combustible black or brownish-black sedimentary rock used primarily as an energy source or in industrial processes.