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

Tapes and mastics used to seal metallic and flexible air ducts must comply with UL 181B and be marked:

181 A-P or 181 A-M 181 B-FX (tape) or 181 B-M (mastic) NFPA 13 Schedule 40

Correct Answer:

181 B-FX (tape) or 181 B-M (mastic)

Access more questions from this quiz

Continue to SC Air Conditioning Practice Questions - South Carolina Air Conditioning Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions