The Power Maintainer 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: understanding basic electrical and electronic theory; proper selection and use of tools, instruments, measuring devices and materials; safe, proper and efficient work practices; reading and interpreting blueprints and electrical drawings; performing job related calculations; keeping records; and other related areas.