G2 Gas Fitter Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the G2 Gas Fitter Test. Study using flashcards and multiple choice questions, with hints and detailed explanations for each question. Ensure your success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What type of draft is generated by a device downstream of the combustion zone?

Forced draft
Induced draft
Gravity draft
Natural draft

The correct answer is: Induced draft

Induced draft refers to the type of draft that is generated by a device located downstream of the combustion zone. This means that it is created by a fan or blower that exhausts gases from the combustion process, helping to draw more air into the combustion chamber. This mechanism facilitates better combustion efficiency by ensuring a consistent supply of air while removing flue gases safely. In heating and ventilation systems, the use of induced draft systems helps in managing the pressures within the system, allowing for better control over combustion processes. It can effectively prevent backdrafts and ensure that harmful gases are expelled properly. This is different from natural draft, which relies on the natural buoyancy of hot gases to rise, or forced draft, where air is mechanically pushed into the combustion chamber, and gravity draft, which is dependent on the weight of the exhaust gases. Induced draft systems are often preferred in modern applications for their efficiency in ensuring safe and effective gas combustion management.