AS 411 Exam 3 Questions With Correct Answers

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AS 411 Exam 3 Questions With Correct Answers

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Institution AS 411

Course AS 411

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AS 411 Exam 3 Questions With Correct Answers

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AS 411 Exam 3 Questions With Correct
Answers

How many HYD systems for the 737 and what are they - CORRECT
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ANSWER✔✔-A, B, STBY | |

How many HYD systems for the 787 and what are they - CORRECT
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ANSWER✔✔-L, R, C | |

How many HYD systems for the A321 and what are they - CORRECT
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ANSWER✔✔-Green, blue, yellow | |

How many sources of hydraulic power for 737? - CORRECT
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ANSWER✔✔-5; 2 EDPs, 2 ACMPs, STBY ACMP
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How many sources of hydraulic power for 787? - CORRECT
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ANSWER✔✔-7; 2 EDPs, 4 EMPs, 1 RAT (emergency use only)
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What is a PTU and what does it do? - CORRECT ANSWER✔✔-Not a
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source of hydraulic pressure. Supplies additional hydraulic fluid for
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autoslats and leading edge flaps and slats if B malfunctions
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, What is the landing gear transfer unit? What does it do? - CORRECT
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ANSWER✔✔-Supplies the hydraulic fluid needed to raise the gear if A is | | | | | | | | | | | |

lost or left engine fails. 737 cannot make 2nd segment of climb gear
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down with one engine
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HYD pressure for the 737? - CORRECT ANSWER✔✔-3000 psi
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HYD pressure for the 787? - CORRECT ANSWER✔✔-5000 psi
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What is EDP? - CORRECT ANSWER✔✔-Engine-Driven Pump
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What is ACMP? - CORRECT ANSWER✔✔-AC Motor Pump
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What is RAT? - CORRECT ANSWER✔✔-Ram Air Turbine (not on 737)
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What is EMP on 787? - CORRECT ANSWER✔✔-Electric Motor Pump
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Where are the HYD reservoirs on the 737? - CORRECT ANSWER✔✔-
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Wheel well |

What powers the landing gear? - CORRECT ANSWER✔✔-A
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Uploaded on: July 23, 2026
Number of pages: 5
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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