Which of the following statements is true concerning the fuel oil ignition system of the gas turbine engine shown in the illustration? Illustration GT-0017

Correct Answer: Option C — The igniters will de-energize when the gas generator exceeds a preset RPM.

Ignition systems in gas turbines are designed for starting sequences only. Once the gas generator reaches a self-sustaining speed, combustion is continuous and self-supporting. The igniters are automatically de-energized at a preset RPM to prevent premature electrode erosion and extend the service life of the ignition components.