Mechanic: Test for, locate and repair electrical malfunctions. Install electrical and electronic control systems. Assemble and fabricate electrical and electronic components and appliances. Install electrical equipment such as storage heaters, water heaters, electric signs, switchboards, motors and other electrical equipment.

Helper: Help mechanics by performing duties requiring less skill. Duties include using, supplying or holding materials or tools, and cleaning work area and equipment. Measure, cut, and bend wire and conduit, using measuring instruments and hand tools.