NV A-19A Water Pipelines Practice Questions - Nevada A-19A Pipelines And Conduits For Water Contractor Examination Exam

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According to the DIPRA Installation Guide for Ductile Iron Pipe, what hydrostatic test is recommended for a newly installed water main?

At least 1.5 times the stated working pressure at the lowest elevation of the test section, held for two hours Equal to the stated working pressure at the highest elevation, held for 30 minutes Twice the stated working pressure at mid-length, held for 24 hours 50 psi above atmospheric pressure at any hydrant, held for 15 minutes

Correct Answer:

At least 1.5 times the stated working pressure at the lowest elevation of the test section, held for two hours

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