If you are a mechanical or electrical engineer, then you will have to deal with a lot of physical components. In that case, maintenance will be an important issue. In fact, learning the maintenance of such components is a new education genre of engineering sciences. You will learn the category of every equipment and the longevity period of such components. You will learn how to keep the apparatus when they are not in use. You will learn how to assess the effective time period of an apparatus after which you will have to buy a new one. In short, in whichever field of engineering you get a job, you will be able to handle the corresponding instruments with ease. Along with this, you will learn the techniques of cost minimization of a project with the help of the components. This will help you in becoming wise decision makers of your company.