A digital image is made up from a great number of pixels, each pixel having a specific numeric tonal value. Image contrast is determined by the number of tonal values available and image resolution is determined by the number of pixels available.
The Electrical Lineman Apprenticeship program is a selective admission program restricted to individuals who are employed in the electrical industry and are working for a participating employer.
Electrical engineering technicians need to have: 1  knowledge of electrical theory and practice. 2  an understanding of health and safety, and industry standard guidelines. 3  knowledge of how to use and care for their equipment.  good practical and technical skills to operate and maintain equipment.