Work in both inside and outside environmental conditions, while exposed to elevated noise levels, vibrations, extreme cold and heat; conditions which require use of a respirator or dust mask; in close proximity to moving parts, electrical currents; working on scaffolding and high places; exposure to natural gas, high heat, hot surfaces, molten metal, chemicals, oils and lubricants. Work with Electric Shop, Combustion Lab and Electronic Shop equipment and tools, mobile equipment of every kind, controls, switches, valves, ovens, furnaces, machinery, cranes, prints and drawings.