Air Conditioning

Question 1

1. Automatic control of the avionics ventilation system is provided by:

Answer 1

A single Avionics Equipment Ventilation Computer (AEVC).

Question 2

2. You can monitor the operation of the avionics ventilation system inlet and extract valves:

Answer 2

On the CAB PRESS page.

Question 3

3. To cool avionics ventilation air, the skin heat exchanger:

Answer 3

Uses the temperature of the exterior of the aircraft’s fuselage in certain modes of operation.

Question 4

4. The open configuration of the avionics ventilation system:

Answer 4

Uses outside air to ventilate the avionics equipment.

Question 5

5. Status of the Avionics Ventilation System may be monitored on the:

Answer 5

CAB PRESS page.

Question 6

6. The fwd cargo compartment on some aircraft:

Answer 6

Is heated and ventilated.

Question 7

7. Heating, if installed, for the fwd cargo compartment:

Answer 7

All of the above. Is provided by a trim air system, Is controlled automatically by a cargo heat
controller, and can be adjusted from the flight deck .

Question 8

8. In the open configuration, the skin heat exchanger isolation valve is ____ and the heat exchanger is ____.

Answer 8

closed / bypassed.

Question 9

9. 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:

Answer 9

All of the above. The blower fan stops, The inlet valve remains closed, or closes if open, and The air
conditioning inlet valve opens .

Question 10

10. Unlike the normal operating configurations, the Avionics Smoke Configuration doesn’t occur automatically, and the crew must manually set the Avionics Smoke Configuration by:

Answer 10

Using the Blower pb and Extract pb.

Question 11

11. 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.

Answer 11

True

Question 12

12. The closed configuration of the avionics ventilation system:

Answer 12

All of the Above. Is used on the ground during cold ambient conditions, Is used during flight, and
Utilizes the skin heat exchanger

Question 13

13. Once engine bleed air is available to the packs, if pack flow selector is selected to Low, what percentage of normal flow is provided?

Answer 13

80%

Question 14

HI flow rates are automatically commanded regardless of Pack Flow selector position when:

Answer 14

D. Both A and B. A. Operating on a single pack, B. The APU is the sole source of bleed air.