Wastewater Collection Operator Class I Practice Questions - ABC WPI Wastewater Collection System Operator Class I Certification Exam

Which pipe material is most commonly used today for new gravity sewer mains in the 6"–12" size range?

Vitrified clay pipe (VCP) Reinforced concrete pipe (RCP) PVC SDR 35 Ductile iron pipe (DIP)

Correct Answer:

PVC SDR 35

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