When the electric boost pump is operating, the crew is informed by means of:

When the electric boost pump is operating, the crew is informed by means of:

• A. An audible horn
• B. No indication
• C. A white light above the boost pump switch
• D. Red annunciator

Answer: (C)

When the electric boost pump is energized, a white indicator light above the boost pump switch comes on. This provides a clear, immediate visual confirmation to the crew that the pump is delivering fuel pressure, which is especially important during engine start or when fuel pressure could be uncertain. There isn’t an audible horn used to indicate pump operation, and red annunciators are typically reserved for warnings or faults, not normal pump status. So the white light above the switch is the designated cue that the pump is operating.

When the electric boost pump is energized, a white indicator light above the boost pump switch comes on. This provides a clear, immediate visual confirmation to the crew that the pump is delivering fuel pressure, which is especially important during engine start or when fuel pressure could be uncertain. There isn’t an audible horn used to indicate pump operation, and red annunciators are typically reserved for warnings or faults, not normal pump status. So the white light above the switch is the designated cue that the pump is operating.