What are the three components of a spark ignition system?

The three components of a spark ignition system are indeed an ignition transformer, a cable, and an electrode.

The ignition transformer is crucial as it converts a low voltage into a high voltage needed to create a spark. This high voltage is then transmitted through the cable to the electrode, where the spark ignites the fuel-air mixture. The electrode is essential because it serves as the point where the spark is generated, allowing for the combustion process to begin effectively.

Understanding this system is important for anyone working in gas certification, as it lays the groundwork for safe and effective ignition in various applications, including appliances and engines. The other choices do not represent the components of a spark ignition system accurately, focusing instead on elements more relevant to flame sensing or other ignition processes.