The Principal Engineering Technician 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: land surveying principles and practices; map reading; mathematics; construction and maintenance of roads, bridges and other structures; preparing written material; supervision; project planning and design; contracts; and other related areas.