The Mechanical Helper 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: use and function of tools and equipment commonly used in the mechanical trades; reading and interpreting drawings of mechanical objects such as pulleys and gears; shop safety; following written directions; basic arithmetic; and more.