G2 Gas Fitter Practice Exam

Which type of pilot burns without turndown throughout the entire service of the burner?

1. Intermittent pilot

2. Continuous pilot

3. Variable pilot

4. Fixed pilot

The correct answer is: Continuous pilot

A continuous pilot is specifically designed to burn steadily throughout the entire service of the burner, providing a reliable ignition source without the need for adjustment or variation in flame intensity. This type of pilot remains lit at all times during operation, ensuring that the main burner can ignite quickly and consistently whenever it is needed. This feature enhances the overall efficiency and safety of the heating system since there is always a flame available to initiate combustion in the main burner. In contrast, intermittent pilots ignite only when the main burner is about to operate, which means they do not maintain a constant flame during the entire service period. Variable pilots can change their flame size depending on the heating demand, while fixed pilots maintain a consistent size but may not provide the flexibility required for efficient operation in some systems. Continuous pilots eliminate the complexities associated with these variations, making them a straightforward and dependable choice for many gas burning applications.