Pneumatics Flashcards
When is the GND symbol displayed on the SD ECAM BLEED Page?
Whenever the aircraft is on the ground
True of False: Engine and APU bleed air are the only air sources for the pneumatic system.
False
Which pb would you press to manually close this valve?
ENG 1 BLEED pb
The pneumatic system is displayed on which SD ECAM page?
BLEED
True of False: When engines are running, their bleed sources have priority over the APU bleed source and the APU bleed valve automatically closes.
False
With the X BLEED knob in the AUTO position, the crossbleed valve opens and closes in response to the:
APU bleed valve
True of False: While in AUTO, the crossbleed valve will also automatically close in response to a bleed leak.
True
Above what altitude must the APU bleed valve be closed?
20,000’’ (319 IAE/320 IAE) and 22,500’’ (except (319 IAE/320 IAE)
True of False: The APU bleed valve is spring-loaded to the closed position in the absence of air flow.
True
The Bleed Monitoring Computers (BMCs) command the engine bleed valves to close whenever:
- One or more bleed leaks are detected.
- Excessive pressure or temperature is detected.
- Reverse airflow is detected.
– ALL OF THE ABOVE –
Based on the BLEED page the High Pressure Bleed valves are:
Closed
In the ON (lights out) position, the engine bleed valves are controlled:
Automatically.
On the BLEED page, the upper number the yellow arrows are pointing at represents
Bleed air pressure
On the BLEED page, the lower number the yellow arrow is pointing at represents:
Temperature of the pre-cooler outlet air.
If the area above the APU label is blank:
The APU MASTER SW is in the OFF position.
The APU bleed valve displays whenever:
The APU MASTER SW is selected ON.
What is supplying bleed air to the pneumatic system?
APU
On the BLEED page, what valve is highlighted?
Crossbleed Valve
With the X BLEED knob in the AUTO position, the crossbleed valve opens and closes in response to the:
APU bleed valve
True of False: The APU bleed valve is spring-loaded to the closed position in the absence of air flow.
True
Which is true about this BLEED page?
The APU MASTER SW pb has been selected ON.
