Technical Standards and Safety Authority (TSSA) G3 Practice Exam

What type of appliances is a holder of a G.1 certificate permitted to work on?

1. Only on appliances with inputs under 200,000 Btuh

2. Only on appliances with inputs up to 400,000 Btuh

3. Only on appliances with inputs from 400,000 Btuh to 1,000,000 Btuh

4. Only on appliances with any input in vapour phase

The correct answer is: Only on appliances with any input in vapour phase

A holder of a G.1 certificate is trained specifically to work on appliances that involve vapour phase applications, which typically includes equipment such as water heaters, boilers, and heating systems that operate within this context. This certification ensures that the individual has the necessary knowledge and skill set to handle appliances that may involve high pressures and temperatures associated with vapour phase systems, providing a crucial element of safety and compliance with technical standards. With the focus on vapour phase systems, the certification underlines the importance of understanding the particular hazards and operational requirements associated with such appliances. The other options highlight input limits or ranges that do not accurately define the scope of work prescribed by a G.1 certification, which is not restricted solely by input capacity but rather by the type and phase of operation of the appliances.