Water Distribution Operator Practice Questions - ABC WPI Water Distribution Operator Certification Exam (Grades 1-4) Exam

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Which pipe material commonly used in water distribution has a Hazen-Williams C-factor of approximately 140–150 when new?

Ductile iron pipe (DIP) with cement-mortar lining Unlined cast iron pipe PVC (polyvinyl chloride) pipe Asbestos cement (AC) pipe

Correct Answer:

PVC (polyvinyl chloride) pipe

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