Book updated Oct 2020. As of now the IPC 2012 has been adopted here. We create these self-practice test questions module (with 120+ questions) referencing both the requirements set forth in the adopted IPC as well as some TN specific information currently valid in the plumbing trade. The focus is on code compliance - an answer can be correct only if it does not violate the code. Each question comes with an answer and a short explanation which aids...