Download or read book The Complete Basic Boiler & Refrigerator License Exam Book written by Dan Ringo and published by Lulu.com. This book was released on 2020-03 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best and most complete basic boiler and refrigerator operator exam preparation book for readers and students looking to sharpen their skill set. The book is presented in a conversational tone with direct and straightforward methods to cover both boilers and refrigeration principles and their related accessories.