NM CID GF-9 Practice Questions - New Mexico CID GF-9 Utility Lines Contractor Examination Exam

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ANSI/AWWA C600 hydrostatic testing of a new ductile-iron water main requires the test pressure to be held at least 2 hours and to be not less than:

The working pressure at any point, with no multiplier 1.25 times the working pressure at the highest point of the test section and 1.5 times the working pressure at the lowest point of testing Twice the working pressure at every hydrant 50 psi regardless of working pressure

Correct Answer:

1.25 times the working pressure at the highest point of the test section and 1.5 times the working pressure at the lowest point of testing

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