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

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A Type I hood grease duct must be constructed of steel not less than 0.0575 inch (No. 16 gage) or stainless steel not less than 0.0450 inch (No. 18 gage), and its joints must be:

Snapped together with ordinary HVAC drive cleats Made with a continuous liquid-tight weld or braze on the external surface Taped with cloth duct tape Flexible-duct connectors run through the ceiling

Correct Answer:

Made with a continuous liquid-tight weld or braze on the external surface

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