Global - Ops & System Knowledge (ORAL) Flashcards
Which hydraulic pumps have priority in order? Name priority order of AC hydraulic pumps.
- 3A, 3B, 2B, 1B.
What does the color white mean when you select the flaps or slats?
- In transit.
What does yellow mean when you select slats or flaps?
- Inoperative or failure.
What does green mean when you select slats or flaps?
- Good. Flaps or slats are in the position pilot selected.
Why does pump 3A have an OFF switch and not an AUTO switch position?
- It’s a primary hydraulic pumps & operates continuously during normal ops.
Does the APU need one or two batteries to start?
- Needs both batteries to start APU. Rear APU BATTERY operates the starter. AVIONICS BATTERY is the brain with the FADEC.
At what point in the checklist do we retract the flaps and slats? In the air and on the ground?
- In the air: At FRA.Vfto-30 = Flaps 0. Vfto-10 = Slats In.
- On the ground: After exiting runway and performing After Landing flows.
Are SID and ODP departure procedures Single-Engine or Two-Engine?
- Two-Engine procedures.
Is Vac Two-Engine or Single-Engine performance?
- Vac is a Single-Engine performance based climb speed.
Will the RAT deploy on the ground?
- Yes.
What is climb gradient on departure based on?
- Two Engines operating.
How many Fuel Pumps does the Globals have?
- 10 total Fuel Pumps.
- Wing Tanks: 3 per tank (2 AC Primary Pumps and 1 DC Aux Pump)
- Center Tanks: 2 (AC Pumps).
- Aft Tanks: 2 (AC Pumps).
When do Fuel DC PUMPS operate?
- Operates when an AC pump fails, and…
- Slats/Flaps > 0°.
- In the air with gear down and locked.
- < 600 lb in each respective wing.
- Auto transfer stops.
Are Slats / Flaps electric or hydraulic?
- Electric.
What causes a secondary hydraulic pump (1B, 2B and 3B) to start if it is in AUTO?
If the secondary hydraulic pump is in AUTO and one of the following conditions occurs:
* Slats or Flaps are not IN / 0 degrees and at least 1 Engine Generator is operating.
* In flight when low pressure is detected, the associated B pump is automatically activated and will remain energized for a minimum of 5 minutes.