G2 Gas Fitter Practice Exam

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What is the term for a stationary device that diverts the flow of flue gases?

Baffle
Diffuser
Vertical stack
Exhauster

The correct answer is: Baffle

The term for a stationary device that diverts the flow of flue gases is a baffle. Baffles are used within systems to redirect or control the flow of gases and enhance efficiency in exhaust systems. Their design helps to ensure that flue gases do not travel in a straight line, which can help in reducing turbulence and increasing the mixing of gases, ultimately leading to better combustion and discharge away from the appliance. Effective use of baffles can also minimize the chances of backdrafts and optimize the functionality of venting systems. In contrast, a diffuser is generally designed to spread or distribute gas or fluid flow evenly, rather than specifically to divert it. A vertical stack refers to a vertical structure that carries flue gases away from the appliance but does not play a role in diverting the flow itself. An exhauster is typically a fan or mechanical device used to assist in the removal of gases or fumes, rather than a stationary structure for diverting the flow.