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B747-400 HYDRAULIC SYSTEM OPERATIONS EXAM QUESTIONS AND ANSWERS VERIFIED GRADED A+

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B747-400 HYDRAULIC SYSTEM OPERATIONS EXAM QUESTIONS AND ANSWERS VERIFIED GRADED A+ How many hydraulic systems does the airplane have? 4 What does hydraulic system 1 power? Inboard trailing edge flaps Body Steering/Actuation Nose Steering/Actuation Body Gear Steering Nose Gear Steering Alternate Brakes Autopilot Servos What does hydraulic system 4 power? Outboard trailing edge flaps Wing gear Normal brakes Spoilers Landing Gear In addition to System 1, which other system powers the alternate brakes? System 2 Which hydraulic system powers the thrust reversers? Each hydraulic system powers each associated thruster Which systems power the stabilizer trim & elevator feel? 2 & 3 Which system powers the upper yaw damper? 3 Which system powers the lower yaw damper? 2 Which systems power the Left & Right Autopilot servos? 1, 2 & 3 Which systems power the spoilers? 2, 3, & 4 What supplies fluid to the hydraulic systems? Reservoir What pressurizes the reservoirs?

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Uploaded on: November 9, 2024
Number of pages: 8
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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b747 400 hydraulic system operations exam question

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B747-400 HYDRAULIC SYSTEM OPERATIONS EXAM QUESTIONS

AND ANSWERS VERIFIED GRADED A+

How many hydraulic systems does the airplane have?

4

What does hydraulic system 1 power?

Inboard trailing edge flaps

Body Steering/Actuation

Nose Steering/Actuation

Body Gear Steering

Nose Gear Steering

Alternate Brakes

Autopilot Servos

What does hydraulic system 4 power?

Outboard trailing edge flaps

Wing gear

Normal brakes

Spoilers

Landing Gear

In addition to System 1, which other system powers the alternate brakes?

System 2

Which hydraulic system powers the thrust reversers?

, Each hydraulic system powers each associated thruster

Which systems power the stabilizer trim & elevator feel?

2&3

Which system powers the upper yaw damper?

3

Which system powers the lower yaw damper?

2

Which systems power the Left & Right Autopilot servos?

1, 2 & 3

Which systems power the spoilers?

2, 3, & 4

What supplies fluid to the hydraulic systems?

Reservoir

What pressurizes the reservoirs?

Bleed Air

Why must the reservoirs be pressurized?

To prevent pump cavitation

Ensure positive flow

How many pumps does each hydraulic system include?

2

Engine Driven Pump

Demand Pump

How much PSI can each hydraulic pump provide?

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