Systems Question Bank Flashcards
The temperature of each aircraft zone is optimized by means of…..
A Trim Air valve
Under what condition should the pack flow controller be set to low?
With a low passenger load to reduce the amount of bleed air demand and improve fuel efficiency.
The Pack Flow controller is set to NORM and yet the ECAM display shows Pack Flow to be high. How is this possible?
High flow is automatically selected regardless of pack flow selector position because air is being supplied by the APU.
The safety valve protects the aircraft against…
Excessive differential pressure in the cabin.
In AUTO the cabin differential pressure is normally controlled by….
The outflow valve
On the ground the cabin should be…
Depressurized
The LDG ELEV has been set manually. What is the value?
6000 feet
As you can see, cabin pressure control is manual. You want to descend from FL350 to FL 310. What is you target cabin alt?
5300 feet
By moving the MAN V/S CTL to this position…
The cabin altitude is raised by opening the outflow valve.
For the aircraft to be in this normal operation, open circuit configuration, what condition must be satisfied?
The aircraft must be on the ground with thrust levers not at T/O.
With both the BLOWER and EXTRACT pb sw in OVD, what happens to the ventilation system?
The system goes into intermediate configuration and the blower fan stops.
This aircraft is following a track of 140.
False.
Have a look at the FMA. The functions displayed in green on the first line are…
All in active mode as they are on the first line and green.
Have a look at the FMA. The blue LOC is in the armed mode.
True.
A/THR in the blue means it is Armed. Why is there a white box around it?
The A/THR has only become armed within the last 10 seconds and the box is drawn to draw attention to the change.
A/THR in white means it is…
Active.
You notice that some waypoints have a small triangle after the name. What does it mean?
It means the point has to be overflown.
Why is the word DECELERATE on the FMA?
The aircraft has passed the computed ideal descent point.
How can you get the mechanics attention when he is outside the aircraft?
Use the Mech pb sw on the CALLS panel which sounds an external horn.
In this example what does the white SEL light mean?
It is an indication that both RMP 1 and RMP 2 are being used to tune VHF2.
In case of RNP 2 failure, VHF 2 is lost.
False.
The flashing amber MECH light indicates that the interphone system is faulty.
False.
If the battery voltages are below minimum how do you charge them?
I have to switch the external power on and check that the battery pbs are on.
What is the meaning of the green AVAIL light?
External power has been plugged in, you must push the EXT PWR pb to connect it.