However, a high school diploma is not always required. Many workers learn their trade through a four-year apprenticeship program. These programs are usually sponsored by a local trade union. Other workers start as helpers. They pick up the skills of the trade informally and take courses offered by machinery manufacturers and community colleges.
Mechanics learn from experienced mechanics.
They learn how to operate, take apart, repair, and assemble machinery. Coursework focuses on subjects such as shop mathematics, blueprint reading, and welding. Also, electronics and computer training are increasingly important. High school courses in mechanical drawing, mathematics, blueprint reading, physics, and electronics are useful. It is difficult to advance in this job.