Oh, I did not know it before. Engineering is a really hard job, it is not enough just to have knowledge for that but also to have experience of working. Sometimes the best workers are not that who have graduated the best schools but that ones who have knowledge of experience. When i was in Brazil I have used the
grabe.com.br ( production of pumps and filters) I saw what a difficult job it is and what it requires a really good experience. In general such areas as engineering requires more experience than studying.