Which component regulates fuel flow to the engines?

Which component regulates fuel flow to the engines?

• A. Regulates engine oil pressure
• B. Controls ignition timing
• C. Regulates fuel flow to the engines
• D. Measures exhaust temperature

Answer: (C)

Fuel flow to the engines is regulated by the fuel control unit, the device that meters the exact amount of fuel delivered to the engine based on the pilot’s thrust lever input and engine operating data. It receives signals such as thrust lever position and various sensor readings, computes the required fuel mass flow, and controls the fuel pumps and injectors to match that demand. This coordination ensures the engine produces the requested thrust while staying within safe limits. The other options are different systems: regulating engine oil pressure keeps lubrication proper, ignition timing determines when the spark occurs (not how much fuel is delivered), and measuring exhaust temperature is a monitoring task used for safety and performance assessment rather than controlling fuel flow.

Fuel flow to the engines is regulated by the fuel control unit, the device that meters the exact amount of fuel delivered to the engine based on the pilot’s thrust lever input and engine operating data. It receives signals such as thrust lever position and various sensor readings, computes the required fuel mass flow, and controls the fuel pumps and injectors to match that demand. This coordination ensures the engine produces the requested thrust while staying within safe limits.

The other options are different systems: regulating engine oil pressure keeps lubrication proper, ignition timing determines when the spark occurs (not how much fuel is delivered), and measuring exhaust temperature is a monitoring task used for safety and performance assessment rather than controlling fuel flow.