G2 Gas Fitter Practice Exam

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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!

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What is indicated by spillage of flue gases at the appliance draft diverter?

Excessive heat
A working venting system
Restriction in the venting system
Proper combustion

The correct answer is: Restriction in the venting system

Spillage of flue gases at the appliance draft diverter is a clear indicator of a restriction in the venting system. When there is adequate venting, flue gases should be expelled efficiently outside the structure. If spillage occurs, it suggests that the gases cannot flow freely, which may be due to blockages, incorrect sizing of the venting system, or other forms of obstruction that prevent the proper exit of combustion products. This condition can lead to dangerous situations, such as an accumulation of carbon monoxide and a risk of backdrafting, where flue gases are drawn back into the living space rather than being vented outside. Therefore, recognizing spillage at the draft diverter is crucial for diagnosing potential venting issues and ensuring the safety and efficiency of gas appliances.