Gas Fitter Practice Test

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On a decorative appliance with an H-shape burner, what do the carry over ports ensure?

  1. Primary air mixture

  2. Ignition of burner

  3. Blue flame

  4. Secondary air

The correct answer is: Ignition of burner

The carry over ports play a crucial role in ensuring the ignition of the burner on an H-shape burner system. These ports allow the flame to spread from one burner to another, facilitating consistent ignition across the entire burner surface. When the primary burner is lit, the flames reach the carry over ports, which then help transfer that flame to adjacent areas or burners, ensuring that they ignite smoothly and effectively. This mechanism is vital for maintaining a uniform and reliable flame across the burner system, which enhances the overall performance and safety of the decorative appliance. Regarding the other options, while primary air mixture, blue flame, and secondary air contribute to the functionality and efficiency of gas burners, they are not the primary role of the carry over ports. The carry over ports specifically focus on the ignition process, which is why this option correctly identifies their main function.

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