Think You Know Plumbing? Test Your Skills with Our Quiz!ShareFacebookPinterestTwitterMailWhat"s a propane torch used for in plumbing?22%Next Correct Incorrect Plumbers use a propane torch to heat and join copper pipes in a process known as sweating. What"s a propane torch used for in plumbing? Soldering copper pipes Thawing frozen pipes Burning leftover materials Staying warm during winter 22%
