Which of the following is NOT a mode of operation for engine fuel control?

• A. GOV
• B. MEC
• C. EEC
• D. MAN

Answer: (A)

In the context of engine fuel control systems, it is important to understand the various modes of operation that dictate how fuel is managed during different phases of flight and engine performance. The correct answer identifies a mode that is not recognized as a standard operational mode in these systems.

GOV refers to a governor mode, which is a common function in many engine fuel controls, allowing for maintained engine speed through automatic adjustments to fuel flow. MEC stands for Manual Engine Control, which enables the pilot to manually control fuel flow. EEC stands for Electronic Engine Control, which utilizes electronic systems to monitor and adjust fuel flow automatically based on various flight parameters. MAN indicates a manual mode of operation.

The designation 'A' as GOV is not considered a mode of operation in this context is correct. In the operation of engine fuel control systems, the specific modes usually referenced are MEC, EEC, and MAN. GOV is typically a function or feature rather than a distinct mode of operation when discussing fuel control systems in a detailed sense. Therefore, recognizing the distinction between modes and functions is crucial for understanding engine control systems effectively.