The Airbrake 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: Mechanical and pneumatic principles and devices; Installation, testing, maintenance and repair of such devices; Reading and understanding mechanical and pneumatic manuals and drawings; safe work practices and procedures; and other related areas.