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Wastewater Class 2 | Ohio ABC Exam Prep – 120 Questions & Answers | Pumps, Safety, Maintenance, Regulations – 2025/2026
- Exam (elaborations) • 17 pages • 2025
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This document provides a complete set of 120 updated and verified exam questions with correct answers for the Wastewater Class 2 Ohio ABC Certification, based on the 2025/2026 standards. It is designed to prepare wastewater treatment professionals and students for the operator licensing examination by covering key theoretical and practical knowledge areas tested by the Association of Boards of Certification (ABC) in Ohio. 
 
Topics covered include pumping systems, wastewater safety, emergency re...
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