SC Air Conditioning Practice Questions - South Carolina Air Conditioning Contractor Examination Exam

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When pressure-testing a new low-pressure fuel-gas piping system, IFGC 406.4.1 requires the test pressure to be not less than 1-1/2 times the proposed maximum working pressure and not less than:

100 psig 1/2 psig 3 psig 60 psig for every system, including 7-inch water-column piping

Correct Answer:

3 psig

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