Air Management System

Question 1

What does the air management system consists of?

Answer 1

The pneumatic system
Environmental control system
Cabin Pressure Control System

Question 2

When does the engine bleed valve pop open?

Answer 2

when in auto
bleed available
no duct leak
no fire detected

Question 3

When will the system shut down the bleed valve?

Answer 3

leak, overpressure, or failed

Question 4

What prevents the bleed air from to the engines to flow into the APU?

Answer 4

APU bleed check valve

Question 5

When does the APU bleed valve is open?

Answer 5

when the following conditions occur:
APU switch is in Auto
APU bleed available
no duct leak
left engine bleed not available
no anti ice requested

Question 6

When does the crossbleed system commanded open?

Answer 6

one system lacks bleed source
crossbleed start with APU off
no leak unless needed for start
no fire extinguisher handle pulled

Question 7

When would you use the HP cart?

Answer 7

engine start

Question 8

how many loops in the overheat protection system?

Answer 8

2.

Question 9

when the APU bleed valve is closed the only source of bleed air will come from the engine or the ground cart. TF

Answer 9

T

Question 10

When taxing with 2 engines the bleed source will be the engines unless ECS is off and the APU is auto. (once exception) TF

Answer 10

t

Question 11

APU will be the source of bleed if the ECS is off and APU is auto and AI is off all the way for takeoff 500ft. tf

Answer 11

true

Question 12

one pack is enough to supply the cabin with adequate temperature and pressure tf

Answer 12

t

Question 13

single engine bleed can supply both packs when in crossbleed tf

Answer 13

t

Question 14

When does the Gasper shutoff valve activate?

Answer 14

when the passengers experience hot air (35*c) blowing on Thier face

Question 15

Describe the recirculation fan system?

Answer 15

the air is drawn by 2 fans in to the recirculation bay, mixed, and redistributed back into the cabin. the air 48% recirculated air and 52% fresh

Question 16

When does the recirculation fans commanded off?

Answer 16

smoke in the recirculation bay, fire in the cargo bay, both packs off, pressing dump button, APU on ground as the source.

Question 17

which electronic bay does NOT contain a cooling fan?

Answer 17

aft

Question 18

When does the ram air valve commanded open?

Answer 18

packs off, below 25k

Question 19

When does the ram air door come on?

Answer 19

if equipped:
17500 during climb 
17000 descending through
dump active
rat active
aintiice active

Question 20

How does the cabin Pressure controller regulate the cabin Pressure?

Answer 20

By modulating the outflow valve, manually or automatically

Question 21

When does the negative pressure relief valve spring open?

Answer 21

when the maximum negative pressure is achieved at -.5 psi

Question 22

Where does the CPCS obtain it’s information for Field elevations, TO weight, cruise altitude?

Answer 22

the FMS

Question 23

if the CPCS is not available from the primary source, how does it obtain that information?

Answer 23

Manual LFE
uses ambient temperature
default value for the gross weight

Question 24

what is the maximum pressure below 37000?

Answer 24

7.8

Question 25

what is the maximum pressure above 37000m

Answer 25

8.4

Question 26

what happens when you push the dump button?

Answer 26

packs off, recirc fans off, cabin dump 2000ft/min to 12400 then normal leak