Sewage Treatment Operator(Passbooks) (Career Examination Passbooks)

الوصف

The Sewage Treatment 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: mechanical aptitude; safety practices; tools, scales and gauges; basic mathematics and science; and more.