6The Elevator Mechanic Passbook(R) 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: principles of elevator systems and control systems; electrical theory, machinery, systems and instruments; maintenance and repair; tools and equipment; basic mathematics; workplace safety; reading comprehension; and more.