AZ ROC C-45 Sheet Metal
Arizona ROC C-45 Sheet Metal Examination
DuctsEnglish
Exam overviewPractice session
According to SMACNA HVAC Duct Construction Standards, what is the minimum sheet metal thickness (gauge) required for a 36-inch wide rectangular galvanized steel duct operating at a positive static pressure of 2.0 inches water gauge (in. w.g.) without intermediate transverse reinforcement?
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