The Mechanical Maintainer – Group C 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: Knowledge of operating, maintaining and repairing shop machines and equipment involving mechanical, electrical and plumbing work; Knowledge of safe working practices including use of scaffolds, ladders, and rigging; Knowledge of fire extinguishers; Knowledge of operation and maintenance of automotive vehicles; and more.