If fuel and air are mixed ahead of the burner, it is called a/an ______________ burner?
Correct answer: D. Premix
- A. Diffusion
- B. Outside mixing type
- C. Rotary
- D. Premix
Explanation
A premix burner mixes the fuel and air before the mixture reaches the burner outlet, allowing combustion to begin with a prepared mixture. In a diffusion burner, fuel and air meet and mix mainly at the flame zone.
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