The Sewer Inspector 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 and maintenance of sanitary and storm sewer lines and collection systems; trench excavation, backfilling and repaving; general use of tools; mechanical aptitude; reading of scales and gauges; and more.