NV C-1G Gas Pipes And Vents Practice Questions - Nevada C-1G Pipes And Vents For Gas Contractor Examination Exam

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Unless a listed outdoor-appliance exception applies, underground fuel-gas piping shall be installed with a minimum cover of which depth?

6 inches below finished grade 8 inches below finished grade 12 inches below finished grade 36 inches below finished grade, at frost line only

Correct Answer:

12 inches below finished grade

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