This book is designed for use as both a text and study guide for those students taking the licensing test in plumbing. Because of the large number of residential dwellings under construction and planned for the near future, this is a growing area. Well trained and knowledgeable plumbers are urgently needed in most of the individual United States and Canada.  The field of plumbers, pipefitters, and steamfitters is predicted to grow about 12% each year until 2024, faster than most...