The Senior Water Plant Operator 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: practices and equipment used in the operation and maintenance of a water treatment plant; principles and application of physics, chemistry, and bacteriology as related to water treatment and purification, including routine laboratory and field tests for control of plant operations; installation, maintenance, and repair of water lines and water distribution systems; elementary hydraulics and water pumping operations; mechanical aptitude, tools, scales, meters and gauges; and more.