NM Mechanical Inspector Practice Questions - New Mexico CID Mechanical Inspector Examination Exam

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For a new interior fuel-gas piping system that is not welded and is not designed to operate above 14 inches water column, what minimum pressure test does UMC 1313.3 / UPC 1213.3 require the inspector to witness?

An air, carbon dioxide, or nitrogen test of not less than 10 psi held not less than 15 minutes with no perceptible drop A soap-bubble check at operating pressure only A 60 psi test held for 30 minutes on every residential branch A fuel-gas test at meter pressure for 5 minutes

Correct Answer:

An air, carbon dioxide, or nitrogen test of not less than 10 psi held not less than 15 minutes with no perceptible drop

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