Which of the following is a common type of low-pressure oil burner?

The choice of a gun-type burner as a common type of low-pressure oil burner is justified due to its design and operational efficiency in low-pressure applications. Gun-type burners are specifically engineered to atomize fuel oil into fine droplets, allowing for better combustion efficiency.

These burners operate on a low-pressure fuel system, making them suitable for residential heating applications and in buildings where lower emissions and fuel efficiency are prioritized. Their ability to mix fuel and air effectively ensures that the oil burns cleanly, reducing soot and other byproducts of incomplete combustion.

In contrast, other types mentioned, such as turbine and jet burners, are typically utilized in higher-pressure applications or specific industrial uses rather than the common residential or light commercial settings where low-pressure oil burners are preferred. The galaxy burner is also less common compared to the widespread use of gun-type burners in typical heating scenarios. This makes the gun-type burner the most prevalent choice in low-pressure oil burner systems.