🔍 Key Concepts

• Gas turbine engine control systems – what does a fuel control normally regulate? • Relationship between fuel flow, gas generator (GG) speed, and variable stator vanes (VSVs) on an LM2500 • Which components typically handle bleed air, fuel temperature, and pump inlet pressure in marine gas turbine systems

💭 Think About

• Ask yourself: The word fuel control suggests it primarily governs which engine parameter directly – speed, temperature, or pressure? • Which of the listed choices combines a function that obviously belongs with fuel metering and a function that is closely coordinated with it on an LM2500? • Which options describe tasks that are more likely handled by separate systems (e.g., fuel heaters, bleed valves, boost pumps) rather than the main fuel control unit itself?

✅ Before You Answer

• Verify which choice involves direct control of gas generator (GG) speed via fuel scheduling. • Check which functions (bleed air discharge, fuel temp, pump inlet pressure) are usually handled by other dedicated components, not the main fuel control. • Make sure the option you pick pairs fuel-related metering with a function that is actually integrated with the LM2500 main fuel control in most training diagrams.