What are the four positions of the FUEL BOOST 1/2/3 switches and their functions?

Study for the Dassault Falcon 7X Test. Access flashcards and multiple choice questions with hints and explanations to boost your exam confidence.

The positions of the FUEL BOOST 1/2/3 switches serve specific and critical roles in managing the fuel system of the Dassault Falcon 7X aircraft. The correct answer outlines the functions accurately, detailing how each switch position contributes to the operation of the fuel pumps.

In the AUTO position, the standby pump activates automatically during APU (Auxiliary Power Unit) or engine start to ensure fuel is available for ignition and engine functionality. This is crucial because it allows the primary pump to be supported during critical phases of operation when a reliable fuel supply is necessary.

When the switch is in the ON position, the normal pump activates, providing the primary source of fuel. This indicates that the aircraft is not relying on backup systems, and the normal operation of the aircraft is maintained with sufficient fuel flow.

The ST-BY position engages the standby pump, which serves as a backup to the normal pump. This position is important as it allows for redundancy; in the event of a failure of the primary pump, the standby pump can maintain fuel supply.

The OFF position ensures that both pumps are deactivated, which may be utilized during certain ground operations or when the aircraft is not in operation and needs to conserve battery or avoid unnecessary fuel system use.

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