Fuel Metering And Fuel Systems

Question 1

What parameters are normally sensed by a turbine-engine fuel control?

Answer 1

a. Power lever angle.
b. Compressor inlet total pressure.
c. Compressor RPM.
d. Burner pressure.

Question 2

What is meant by trimming a turbine engine?

Answer 2

Adjusting the fuel control for the proper specific gravity of the fuel and for the proper idle and full throttle RPM.

Question 3

What are two types of electronic fuel controls for turbine engines?

Answer 3

Supervisory electronic engine control and full-authority digital electronic control.

Question 4

What position should the flight deck fuel metering control (or fuel condition lever) be set to for starting a turbine engine?

Answer 4

The normal starting sequence is:
1. Rotate the compressor with the starter.
2. Turn the ignition on; and
3. Open the engine fuel valve, either by moving the throttle to idle or by moving fuel shutoff lever or turning a switch.