Unavoidable Hazards Works in area where exposure to radiation is a possibility such as near x-ray equipment or in a nuclear reactor facility; or works in an area where exposure to disease or pathogens is a possibility such as an animal control facility or hospital; or works in area where toxic or caustic chemicals are used, such as shop area where batteries are handled or charged or in areas where electronic parts are cleaned; or works in areas where explosions are possible such as maintaining gas lines or welding or where explosions are deliberate such as excavation or earth moving. Equipment Usage Handles or uses machines, tools, or equipment requiring moderate instruction and experience such as large shop equipment and machines, firefighting apparatus, protective equipment, gang mowers, tractors, vehicles, police vehicles or light trucks, firearms, computers, peripherals, medical or dental equipment, software programs such as word processing, spreadsheets, or custom applications, switchboard; or may repair power tools and light equipment and office machines.