Most People Fail This HVAC Quiz — Can You Pass?Share:FacebookPinterestTwitterMailWhich component is most resistant to corrosion and commonly used for HVAC lines?95%Next Correct Incorrect Copper resists corrosion and handles pressure well, making it ideal for HVAC systems. Which component is most resistant to corrosion and commonly used for HVAC lines? Copper line Aluminum line Steel line Plastic line 95%