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 could result if a flame is adjusted with too much primary air?

Flame lift
Flame blowout
Decreased efficiency
Higher emissions

The correct answer is: Flame lift

When a flame is adjusted with too much primary air, it can lead to a phenomenon known as flame lift. This occurs because the increased air supply alters the combustion dynamics by making the mixture leaner. When the air-to-fuel ratio is not optimal, the flame may become unstable and detach from the burner, resulting in the flame being lifted off the burner surface. This can cause the flame to move away from its intended position, which is not only inefficient but can also pose safety risks. Other potential consequences of adjusting to an improper air-to-fuel ratio, such as blowout, decreased efficiency, and higher emissions, can happen in different circumstances or due to other operational issues, but in the specific context of using excessive primary air, flame lift is the most direct and immediate consequence.