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Questions and Answers
What is the function of the hydraulic fluid in the landing gear system?
What is the function of the hydraulic fluid in the landing gear system?
- To enhance the aerodynamic performance of the aircraft.
- To lubricate the landing gear components.
- To supply pressure to the actuating cylinders. (correct)
- To cool the engine during flight.
Where is the electrically powered reversible pump located?
Where is the electrically powered reversible pump located?
- In the cockpit area near the control quadrant.
- In the cargo hold of the aircraft.
- In the engine compartment beneath the wings.
- In the aft fuselage between fuselage stations 156 and 191. (correct)
How is the pump controlled during operation?
How is the pump controlled during operation?
- By a selector switch on the instrument panel. (correct)
- Through a wireless remote control system.
- Using a manual lever located on the landing gear.
- Automatically based on fuel levels.
What determines the direction in which the hydraulic fluid is directed?
What determines the direction in which the hydraulic fluid is directed?
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What is an integral part of the pump in the landing gear system?
What is an integral part of the pump in the landing gear system?
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Study Notes
Landing Gear Hydraulic System
- An electrically powered pump located in the aft fuselage supplies hydraulic fluid to the landing gear actuating cylinders
- The pump is located between fuselage stations 156 and 191
- The pump has an integrated reservoir
- The pump is controlled by a selector switch on the instrument panel
- There are dedicated pressure lines for each individual actuating cylinder
- The pump directs fluid through these lines based on the position of the selector switch
- The same lines serve as either pressure or return passages depending on the pump rotation, which determines gear extension or retraction
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