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Definition and Nature of the Work

Mechanical engineers work with many kinds of machines that produce, transmit, or use power. They are concerned with mechanisms and methods that convert natural energy sources into practical uses. Mechanical engineers also design tools that other engineers need. They often work as part of a team that includes scientists who develop new theories and methods, and mechanical engineering technicians who assist engineers with some of their more routine tasks.

Mechanical engineers design and develop machines that produce energy, such as car engines and nuclear reactors. They also design and develop machines that use energy including air conditioners, power saws, elevators, and printing presses. Mechanical engineers work on various types of equipment and machines ranging from tiny mechanisms for delicate instruments to huge gears for bulldozers. The field of mechanical engineering is very broad, and some of the diverse job titles include air pollution control engineer, environmental systems engineer, manufacturing engineer, and automotive engineer.

Mechanical engineers generally specialize in one area of engineering. For example, they may work with aircraft engines or with commercial refrigeration equipment. Other fields of specialty include fluid power, instrumentation, and bioengineering. Some work in a particular industry, such as petroleum or plastics.

Within each branch of mechanical engineering there are specific jobs. Some engineers design products. They must determine the needs of the user, the physical problems of building the equipment, the cost of the equipment, and its effect on the environment. Other mechanical engineers supervise the production and installation Most mechanical engineers work for manufacturing companies that make primary and fabricated materials, machinery, and electrical and transportation equipment. (© Martha Tabor/Working Images Photographs. Reproduced by permission.) of equipment or are in