AMP - Aviation Maintenance Technician Powerplant Practice Exam

What is the purpose of a flameout detector in jet engines?

1. To increase fuel efficiency

2. To detect extreme temperature drops indicating potential flameout

3. To measure engine speed

4. To analyze fuel flow

The correct answer is: To detect extreme temperature drops indicating potential flameout

The purpose of a flameout detector in jet engines is to identify extreme temperature drops that indicate a potential flameout condition. When a flameout occurs, the combustion process within the engine is interrupted, leading to a significant reduction or complete loss of engine power. The flameout detector monitors the temperature in the combustion chamber and can sense rapid decreases in temperature that would signify that the combustion flame has gone out. This early detection is crucial as it allows the pilot or the automated systems of the aircraft to take corrective action, such as attempting to relight the engine or preparing for a safe landing. In contrast, while improving fuel efficiency, measuring engine speed, or analyzing fuel flow are important aspects of engine operation and management, they are not the primary functions of a flameout detector. The flameout detector's specific role is centered on maintaining safe engine operation by preventing or managing situations that lead to loss of thrust due to flameouts.