Asking about my self and my career My answer were: I am presently, and for more than 23 years have been working as a Mechanical designer of HVAC systems, Fire Protection and Electrical Drafting in CAD/Revit and other heavy equipment used in hotels, restaurants, casinos, schools, malls, government buildings, industry buildings, and other commercial buildings in the St. Louis area. From 1985 to 1994, I worked for an International Belgium- based construction & chemical industries company where I had the responsibility of installation, troubleshooting, and overhauling of mobile and stationary compressors, vehicles, pneumatic and hydraulic equipments, equipments used in building roads, commercial building, and geological drilling