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!

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.

If the gas/air velocity is too great at the port of an atmospheric burner, what is likely to happen to the flame?

It will extinguish
It will lift off the port
It will turn yellow
It will produce more carbon

The correct answer is: It will lift off the port

When the gas/air velocity at the port of an atmospheric burner is too great, the likely outcome is that the flame will lift off the port. This phenomenon occurs because high velocity can disrupt the stable combustion of the gas-air mixture. Atmospheric burners rely on a balanced flow of gas and air to maintain a consistent flame at the burner port. When the velocity increases excessively, it can create a situation where the force of the gas and air flow overcomes the anchoring effect of the burner. As a result, the flame can detach from its intended position, causing it to lift away from the burner itself. Understanding this behavior is crucial for ensuring safe and efficient operation of atmospheric burners. If the flame lifts, it can lead to combustion instability and possibly hazardous conditions.