Air Conditioning Questions

Question 1

The Air conditioning system temperature is regulated by

Answer 1

One zone controller and two PACK controllers

Question 2

The pack flow control valve automatically closes for all but which of the following

Answer 2

High air pressure

Question 3

Under normal conditions it is possible to control temperature in all areas except the

Answer 3

Forward cargo compartment

Question 4

If the APU is supplying bleed air or one PACK fails, ______ flow is delivered regardless of pack flow selector position

Answer 4

HI

Question 5

If Pack Flow is selected to LO and temperature demand cannot be satisfied, the pack reverts to _____flow

Answer 5

NORM

Question 6

What happens if a zone cooling demand is not met due to low bleed pressure

Answer 6

Engine idle is automatically increased

Question 7

The PACK valves close when the ENG MODE SEL switch is placed to ING/START on the ground prior to engine start. When will they reopen?

Answer 7

30 seconds after first engine start if second engine start has not been initiated

Question 8

Hot _____ air from the pneumatic system is used to maintain desired zone temperature

Answer 8

Trim

Question 9

Using external conditioned ground air simultaneously with airplane pack air is

Answer 9

Prohibited

Question 10

The HOT AIR FAULT light illuminates amber when a duct _____ is detected

Answer 10

Overheat

Question 11

What happens to cabin zone inlet duct temperature if the lab/galley extract fan fails?

Answer 11

Cabin zone inlet duct temperature is fixed at 59F

Question 12

Which of the following is true if the primary PACK controller channel fails

Answer 12

Secondary channel takes over automatically and the pack flow is fixed at pre-failure setting

Question 13

What occurs if both PACK channels fail?

Answer 13

PACK outlet temp goes to a set temperature range by the pack anti-ice valve.

Question 14

If the primary zone controller channel fails,

Answer 14

The flight deck is controlled to 76 degrees F by pack 1 and the cabin forward and aft zones are controlled to 76 degrees F by pack 2

Question 15

ALTN MODE displays in green on the ECAM COND page when a

Answer 15

Primary zone controller fault is detected

Question 16

IF both zone controller channels fail,

Answer 16

The related ECAM information is not displayed, and the message PACK REG apples

Question 17

What pilot action is required with loss of primary and secondary zone controller channels

Answer 17

None. System automatically goes to a fixed temperature

Question 18

Selecting the RAM AIR switch ON, opens the ram air inlet valve provided the _____ switch is not selected ON

Answer 18

DITCHING

Question 19

When will the avionics ventilation system be in the closed configuration while on the ground?

Answer 19

Cold Skin temperatures

Question 20

You are doing the walk around at ORD in January and notice both the inlet and extract valves are closed. You should

Answer 20

Continue the walk around this is normal

Question 21

The avionics ventilation system provides cooling for all the following except the

Answer 21

Cabin entertainment system

Question 22

The Air Conditioning RAM AIR switch is selected to ON, the differential pressure less than 1 PSI. The ream air inlet opens and the outflow valve

Answer 22

Opens to approximately 50% if the cabin pressure MODE SEL switch is in AUTO

Question 23

While pre-flighting, you hear a horn in the nose wheel well. Since the APU is NOT running, this may indicate a

Answer 23

Duct overheat in the avionics ventilation system