How will the burner flame appear if the orifice is not properly aligned?

If the orifice is not properly aligned, the burner flame may appear yellow. This yellow color often indicates incomplete combustion, which can occur when the air and gas mixture is not optimal due to misalignment. An improperly aligned orifice can obstruct the flow of gas or disrupt the mixing of gas with air, leading to the production of carbon particles, which cause a yellow flame.

In a well-functioning burner, the ideal flame is blue and steady, indicating complete combustion where adequate oxygen is mixing with the gas. A flickering flame suggests instability but does not directly indicate the specific issue of orifice alignment. A clear and well-defined flame would also suggest proper alignment and combustion. Therefore, the yellow flame is the correct result of misalignment, reflecting a failure to achieve a clean and efficient burn.