This book contains 4 full-length practice exams for water treatment certification. Each practice exam consists of 100 questions, which test the operator's knowl
Who is this book for? This book is for anyone studying for the Grade 2 Water Distribution Operator Certification Exam. It's intended for newer operators. Grade
Who is this book for? This book is for anyone studying for the Grade 1 or Grade 2, Water Distribution Operator Certification Exam. It's intended for newer opera
This updated study guide follows the new requirements established by the ABC. It is organized by certification levels I, II, III, and IV. Questions are ranked f
This book is for newer wastewater treatment operators who are studying for the Grade 2 exam (second certification level from the bottom). It contains 360 questi