The Plant Maintenance Engineer 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: construction, operation and maintenance of a physical plant, including mechanical and electrical equipment, air conditioning, and heating and ventilating systems; contracts, plans, specifications and estimates; supervision; installation, operation and maintenance of water and sewage plants; and more.