The Structure Maintainer - Groups A, B, C, D & E 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: shop mathematics; basic tools associated with structure maintenance and repair; common aspects of structure maintenance; ability to read and interpret structural drawings and sketches; safe working procedures and practices; transit authority rules and regulations; and other related areas.