The role of a Mechanical Inspector, as the name implies, is to inspect and further test electrical, mechanical, plumbing, and other types of systems and technology, whether it be in use by a business, a government organization, or a residential or commercial area or group.
These systems can include things such as daily appliances, boilers, gas or oil lines, or elevators. They do not simply examine and test for the purposes of seeing whether or not the hardware works properly but also in order to see whether it works properly within a town's or city's regulations and laws. Thus, they usually work for the government and the organizations tied to it but can also be found in architectural agencies and engineering companies.
A potential candidate for the position of Mechanical Inspector has to have at least a high school diploma and some experience in the field. Some employers, however, also ask for college-level education in subjects such as Architecture or Engineering.