210, Air Conditioning Flashcards
Automatic control of the avionics ventilation system is provided by:
- A single Avionics Equipment Ventilation Computer (AEVC).
- Two ventilation controllers that are both active.
- Two ventilation controllers, one primary, and the other standby if the primary fails.
- The zone regulator.
A single Avionics Equipment Ventilation Computer (AEVC).
You can monitor the operation of the avionics ventilation system inlet and extract valves:
- On the COND page.
- On the CAB PRESS page.
- Nowhere. Only the system fans can be monitored.
- On the BLEED page.
On the CAB PRESS page.
To cool avionics ventilation air, the skin heat exchanger:
- Uses the temperature of the exterior of the aircraft’s fuselage in certain modes of operation.
- Used on the ground in warm ambient conditions.
- Vents to the floor
- Is used only when system performance is degraded.
Uses the temperature of the exterior of the aircraft’s fuselage in certain modes of operation.
The open configuration of the avionics ventilation system:
- Uses outside air and the skin heat exchanger to ventilate the avionics equipment.
- Uses outside air to ventilate the avionics equipment.
- Uses the skin heat exchanger to ventilate the avionics equipment.
- Is only used to clear smoke from the system.
Uses outside air to ventilate the avionics equipment.
Status of the Avionics Ventilation System may be monitored on the:
- CAB PRESS page.
- WHEEL page.
- COND page.
- BLEED page.
CAB PRESS page.
The fwd cargo compartment on some aircraft:
- Is heated, ventilated, and cooled using the skin heat exchanger.
- Is not directly heated and ventilated.
- Is heated and ventilated.
- Is ventilated only.
Is heated and ventilated.
Heating, if installed, for the fwd cargo compartment:
- Is provided by a trim air system.
- Is controlled automatically by a cargo heat controller.
- Can be adjusted from the flight deck.
- All of the above.
All of the above.
In the open configuration, the skin heat exchanger isolation valve is ____ and the heat exchanger is ____
- closed / bypassed.
- open / bypassed.
- open / intermediate.
- closed / intermediate.
closed / bypassed.
If the AEVC senses smoke in the avionics compartment, an Avionics Smoke Caution is generated and after placing the Blower pb and Extract pb to override, the following is accomplished:
- The blower fan stops.
- The inlet valve remains closed, or closes if open.
- The air conditioning inlet valve opens.
- All of the above
All of the above
Unlike the normal operating configurations, the Avionics Smoke Configuration doesn’t occur automatically, and the crew must manually set the Avionics Smoke Configuration by:
- Opening the small internal flap within the extract valve.
- Using the Blower pb and Extract pb.
- Opening the outflow valve.
- Selecting the inlet valve closed.
Using the Blower pb and Extract pb.
In the event of a forward cargo compartment overheat condition, or if the Hot Air pb is selected to OFF, the Trim Air Valve closes and airflow to the forward cargo compartment is shut off.
True
False
True
The closed configuration of the avionics ventilation system:
- Is used on the ground during cold ambient conditions.
- Is used during flight.
- Utilizes the skin heat exchanger.
- All of the above.
All of the above.
Once engine bleed air is available to the packs, if pack flow selector is selected to Low, what percentage of normal flow is provided?
- 70%
- 90%
- 60%
- 80%
80%
HI flow rates are automatically commanded regardless of Pack Flow selector position when:
- A. Operating on a single pack
- C. Additional cooling is required
- D. Both A and B
- B. The APU is the sole source of bleed air
D. Both A and B
