Journeyman Plumber's Licensing Exam Guide Author:R. Dodge Woodson A journeyman's license is required to perform any plumbing work and is also a prerequisite to becoming a master plumber. Here is the first book to focus solely on the journeyman certification exam, providing the apprentice plumber or others interested in the trade with an in-depth tool for preparation for the test. Using a question-and-answer fo... more »rmat, master plumber R. Dodge Woodson covers basic plumbing principles, theories, and techniques, and reviews certification requirements. Sample test questions are provided throughout, as well as illustrative charts, tables, and drawings. Chapters are included on code definitions and regulations, sanitary and storm water drainage systems, joints and connections, and vents.« less