When auto starting a gas turbine engine similar to the one shown in the illustration, a "False Start" indication will initiate if which of the following conditions occurs? Illustration GT-0016

Correct Answer: Option B — The gas generator rotor fails to reach a preset RPM after the starting motor has been energized for a preset interval.

A false start occurs when the gas generator fails to reach self-sustaining speed within the programmed time limit after the starter engages. This safety logic prevents fuel accumulation in the combustion chamber, mitigating the risk of a hot start or subsequent explosion during the ignition sequence.