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Free technical challenge
A320 hydraulic systems
Ten questions are drawn randomly each time from the larger source-locked bank.
1. What pressure differential is required for automatic PTU operation in the source logic, before considering other enables/inhibits?
>250 PSI
>500 PSI
>650 PSI
>1000 PSI
2. At what value does engine-driven-pump low pressure set?
≤1450 PSI
≤1750 PSI
≤2200 PSI
≤3000 PSI
3. At what value does system low pressure set in the trainer logic?
≤1450 PSI
≤1750 PSI
≤2200 PSI
≤2500 PSI
4. Does the hydraulic source used by the trainer publish a RAT-only hydraulic pressure value?
Yes, 3000 PSI
Yes, 2500 PSI
No
Only on the ground
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. Which is part of Blue electric-pump AUTO logic?
Flight
Ground with one engine running
BLUE PUMP OVRD
All of the above
7. Automatic RAT deployment in the source logic follows loss of which buses?
AC BUS 1 only
AC BUS 2 only
AC BUS 1 and AC BUS 2
DC ESS and DC 2
8. At what temperature does reservoir overheat set in the source logic?
88°C
90°C
93°C
100°C
9. Does a reservoir low-level warning automatically shut down a pump in the trainer?
Always
Never under any aircraft standard
Not unless the source explicitly defines it
Only Yellow
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
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