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.
Pennsylvania Electrical Continuing Education Courses. Electrical Contractors: Before any Electrical Contractorâs License is issued or renewed, the applicant or licensee shall have completed at least 8 hours per year in course work or seminars on the current edition of the National Electrical Code.