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Questions and Answers
What is the primary function of the door actuator in Boeing aircraft?
What is the primary function of the door actuator in Boeing aircraft?
- To open and close the fuel tanks
- To control the cabin pressure
- To act as a hydraulic pump
- To serve as a double acting hydraulic cylinder (correct)
Which system provides position indication for the wheel well door actuator?
Which system provides position indication for the wheel well door actuator?
- Pressure sensors
- Proximity sensors (correct)
- Temperature sensors
- Speed sensors
For what purpose are the signals from the proximity sensors used?
For what purpose are the signals from the proximity sensors used?
- To control the cabin lighting system
- To monitor fuel levels
- For position indication and sequencing of gear extension and retraction (correct)
- To measure engine performance
What type of hydraulic cylinder is used as a door actuator in Boeing aircraft?
What type of hydraulic cylinder is used as a door actuator in Boeing aircraft?
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What is the name given to the door actuator on Boeing aircraft?
What is the name given to the door actuator on Boeing aircraft?
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Study Notes
Door Actuator
- The door actuator on Boeing Aircraft is a double acting hydraulic cylinder, known as the wheel well door actuator.
- It is responsible for moving the doors on aircraft, particularly the wheel well doors.
- Proximity sensors are installed on the door to provide feedback on their position, indicating whether they are open or closed.
- This feedback is crucial for the sequencing of gear extension and retraction.
Position Feedback and Safety
- The signals from the proximity sensors are used to determine the door position.
- This information is critical for ensuring the correct sequence of actions during gear extension and retraction, contributing to safety and operational efficiency.
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