Welders operate welding equipment in order to join metal workpieces together. They can use fusion welding processes based on different techniques and materials. They also perform simple visual inspection of welds. "Kegagalan dalam kemuliaan lebih baik daripada kejayaan dalam kehinaan.…
Oil refinery control room operators perform a range of tasks from the control room of an oil refinery. They monitor the processes through electronic representations shown on monitors, dials, and lights. Control room operators make changes to variables and communicate…