Serves as the chief test control and examining officer for the Wing by individual testing or directing instructor personnel to provide tests to applicants for operating a variety of fixed and mobile equipment such as automotive, heavy mobile, tractor, material handling, and special or general purpose equipment such as cars, trucks, truck tractor and trailer, farm tractors, bulldozers, graders, cranes, front end loaders, road and warehouse sweepers, generators, compressors, elevators, fork lifts, general purpose and power tools, and various special purpose equipment. Performs operational maintenance and repair on heavy duty mobile equipment and vehicles such as road graders, bulldozers, power shovels, heavy duty compressors, large generators, tractors, large trucks, and cranes, and a variety of combustion powered automotive vehicles and material handling equipment (MHE) such as passenger cars and trucks, forklift trucks and warehouse tractors, special purpose vehicles etc.