This PowerPoint presentation covers the skills and knowledge required to test the working atmosphere, using electronic test apparatus, to find out if it is safe for the proposed work. It is written in plain simple English which makes it quick and easy for everyone to learn. It has questions and answers to get you ready for the types of questions you might be asked when you go for your ticket. Pictures on every page make learning simple. This book is used by trainers all over Australia to help people get their ticket.