UA Service, Training, and Recognition (STAR) Practice Test

The main idea here is how a standing pilot operates. A standing pilot is a small flame kept burning all the time so it’s ready to ignite the main burner whenever heat is demanded. Because this pilot flame is continuously lit, it burns continuously, not only when you’re actively igniting or when the burner is on. Safety systems, like a thermocouple, ensure gas to the pilot is shut off if the flame goes out, but the flame itself is meant to be constant. That’s why the correct description is continuous burning. It isn’t spark-ignited, and it isn’t dependent only on ignition events or the main burner being on.