How long can the nitrogen accumulator hold the landing gear up?

The nitrogen accumulator is designed to provide hydraulic pressure to retract and extend the landing gear system. In the specific aircraft context of this practice test, the nitrogen accumulators are engineered to maintain their pressure and support the landing gear in the retracted position for an extended period. This design ensures that, in case of a failure in the primary hydraulic system, the nitrogen accumulator can continue to hold the landing gear up reliably.

In the case of this question, the correct answer indicates that the nitrogen accumulator can hold the landing gear up for 200 minutes. This extended duration suggests a well-thought-out safety margin that is typical in aviation design, allowing for operational flexibility and safety under various circumstances.

The other choices indicate different durations that do not align with the actual design specifications or performance standards of the system, reinforcing that the design allows for adequate holding time in normal operational scenarios.