Free technical challenge

A320 hydraulic systems

Ten questions are drawn randomly each time from the larger source-locked bank.

1. At what value does system low pressure set in the trainer logic?

≤1450 PSI ≤1750 PSI ≤2200 PSI ≤2500 PSI

2. After cargo-door operation ends, how long is the PTU cargo inhibit retained in the source logic used by the trainer?

10 seconds 20 seconds 40 seconds 60 seconds

3. Which bus supplies power to the Blue electric pump?

AC 1 AC 2 DC 1 DC ESS

4. At what temperature does reservoir overheat set in the source logic?

88°C 90°C 93°C 100°C

5. The Yellow electric pump receives power from which source(s) in the trainer's source logic?

AC 1 only AC 2 or external power DC ESS only HOT 1

6. What nominal pressure is used for a normally pressurised hydraulic system in the trainer?

1450 PSI 1750 PSI 2500 PSI 3000 PSI

7. Where defined, reservoir low-air logic sets at or below what pressure?

18 PSI 22 PSI 25 PSI 30 PSI

8. Cargo-door operation can automatically command which pump?

Green EDP Blue electric pump Yellow electric pump RAT pump

9. At what value does system low pressure reset?

≥1450 PSI ≥1750 PSI ≥2200 PSI ≥3000 PSI

10. Which normal hydraulic source is associated with the Green system?

ENG 1 engine-driven pump ENG 2 engine-driven pump Blue electric pump RAT