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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If the cause of sooting is scale on top of the burner, what is the corrective action?

Ignite the burner
Clean the burner
Replace the burner
Adjust the air shutter

The correct answer is: Clean the burner

When scale on top of the burner leads to sooting, the appropriate corrective action is to clean the burner. The presence of scale can disrupt proper combustion by obstructing the gas flow and affecting the air-to-fuel mixture, which causes incomplete combustion and creates soot. Cleaning the burner removes these deposits, allowing for improved airflow and more efficient combustion. This step can help restore the burner to optimal working condition and reduce or eliminate the sooting issue. Other options such as igniting the burner, replacing the burner, or adjusting the air shutter do not address the fundamental issue of scale buildup. Igniting the burner in a sooty condition could exacerbate the problem, while replacing the burner may not be necessary if a thorough cleaning can resolve the issue. Adjusting the air shutter may affect the combustion process but wouldn't eliminate the blockage caused by the scale. Cleaning the burner directly targets the source of the issue, making it the most effective corrective action.