The Power Maintainer – Group B 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: technical operation, maintenance, repair, and testing of electrical power equipment used to supply power, including rectifiers, rotary converters, motors, generators, and asso­ciated auxiliary and control equipment; rules and regulations and safety procedures applicable to the power division; operation of electrical test equipment; fundamental electrical circuits and electrical equipment; and more.