The Signal Electrician Passbook® prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: basic principles of electricity; principles, practices, tools and equipment of the electrical trade; operation, maintenance and repair of traffic signals; basic electronics; and more. | Signal Electrician (c-2440) by National Learning Corporation, Paperback | Indigo Chapters