has ability has skill has job zone active learning active listening complex problem solving critical thinking mathematics speaking occupation holder with job zone 3 mathematical reasoning near vision speech clarity speech recognition visualization written expression drafter mechanical drafter 3 Near Vision Active Listening Visualization Speech Recognition Speaking Speech Clarity https://www.bls.gov/oes/current/oes173013.htm Active Learning Written Expression Critical Thinking Complex Problem Solving Mathematics Oliver He 17-3013.00 Sam Smith Mechanical Drafters Mathematical Reasoning Prepare detailed working diagrams of machinery and mechanical devices, including dimensions, fastening methods, and other engineering information.