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Maine Gas Exam - With Codes Questions And Answers Latest Top Score.
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Maine Gas Exam - With Codes Questions And Answers Latest Top Score. Minimum vertical height for a Type B-W gas vent above the bottom of a wall furnace? - correct answer. 12 Feet NFPA 54 12.7.2(3) Minimum thickness of a steel striker barrier for gas tubing protection? - c...
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