Air Conditioning, Refrigeration and Heating Career Profile: Heating and air-conditioning mechanics install, service, and repair heating and air-conditioning systems in both residences and commercial establishments. Furnace installers, also called heating equipment technicians, follow blueprints or other specifications to install oil, gas, electric, solid-fuel, and multiple-fuel heating systems. Air-conditioning mechanics install and service central air-conditioning systems. After putting the equipment in place, they install fuel and water supply lines, air ducts and vents, pumps, and other components. They may connect electrical wiring and controls and check the unit for proper operation. To ensure the proper functioning of the system, furnace installers often use combustion test equipment such as carbon dioxide and oxygen testers.
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Automotive Mechanic Career Profile: Automotive service technicians and mechanics inspect, maintain, and repair automobiles and light trucks with gasoline engines. The work of automotive service technicians and mechanics has evolved from simply mechanical to high technology. Today integrated electronic systems and complex computers run vehicles and measure their performance while on the road. Automotive service technicians have developed into diagnostic, high-tech problem solvers. Technicians must have an increasingly broad base of knowledge about how vehicles' complex components work and interact, as well as the ability to work with electronic diagnostic equipment and computer-based technical reference materials.
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Aviation Mechanic Career Profile: To keep aircraft in peak operating condition, aircraft and avionics equipment mechanics and service technicians perform scheduled maintenance, make repairs, and complete inspections required by the Federal Aviation Administration (FAA). Many aircraft mechanics, also called airframe, powerplant, and avionics aviation maintenance technicians, specialize in preventive maintenance. They inspect engines, landing gear, instruments, pressurized sections, accessories—brakes, valves, pumps, and air-conditioning systems, and other parts of the aircraft, and do the necessary maintenance and replacement of parts.
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