Type training · Airbus A320 family B1.1 · ATA 29
Airbus A320 B1.1: Hydraulic Power (ATA 29)Type training questions & answers
Green, blue and yellow systems, PTU and RAT, reservoirs, servicing, filters and leak checks.
- A worked explanation on every question
- Written for the A318–A321 with IAE V2500-A5 engines
- Read in English or 15 other languages
Sample Hydraulic Power questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.What are the normal pressure sources of the A320 green, blue and yellow hydraulic systems?
- A.Electric pump, engine 1 pump, engine 2 pump
- B.Engine 1 pump, RAT, electric pump
- C.Engine 1 pump, electric pump, engine 2 pump
Show answer and explanation
Correct answer: C. Engine 1 pump, electric pump, engine 2 pump
Green is normally powered by the engine 1 driven pump, blue by its electric pump and yellow by the engine 2 driven pump.
2.Which auxiliary pressure source is available to the A320 blue hydraulic system in flight?
- A.The Power Transfer Unit
- B.The yellow hand pump
- C.The Ram Air Turbine
Show answer and explanation
Correct answer: C. The Ram Air Turbine
The RAT is the blue system's auxiliary source. The PTU only links green and yellow.
3.What does the A320 Power Transfer Unit transfer between the green and yellow systems?
- A.Fluid from the fuller reservoir
- B.Both fluid and pressure
- C.Hydraulic power only, no fluid
Show answer and explanation
Correct answer: C. Hydraulic power only, no fluid
The PTU is a hydraulic motor and pump on one shaft, so it transfers power without moving fluid from one system to the other.
Part of the Airbus A320 family B1.1 type course
One chapter of the Airbus A320 family B1.1 type course question bank, for the A318–A321 with IAE V2500-A5 engines, written in our own words for revision. Your type course and the aircraft maintenance manual stay the authority: limits and procedures can differ between airframes and operators.
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