Air Conditioning and Pressurization

Question 1

Can Air source to Trim air only be selected on the ground?

Answer 1

No

Question 2

What is the max differential pressure on the ground ?

Answer 2

0.1 psi

Question 3

What is the max positive differential pressure?

Answer 3

9.4 PSI

Question 4

What is the max negative differential pressure ?

Answer 4

-0.5 PSI

Question 5

Where is the outflow valve located ?

Answer 5

Front right wing fairing

Question 6

How is the outflow valve actuated ?

Answer 6

DC ELECTRIC MOTORS

Question 7

What computer controls the outflow valve?

Answer 7

IASC

Question 8

What cabin altitude triggers a caution light?

Answer 8

8500ft

Question 9

What cabin altitude triggers a warning light?

Answer 9

9400ft

Question 10

How many feet are added to cabin altitude to readjust for a high alt mode caution light ?

Answer 10

650ft

Question 11

How many feet are added to cabin altitude to readjust for a high alt mode warning light?

Answer 11

1550ft

Question 12

What is the automatic landing altitude return to base criteria ?

Answer 12

6000ft or 10 min

Question 13

How many safety valves does the Challenger 350 aircraft have ?

Answer 13

2

Question 14

What is the purpose of the safety valves?

Answer 14

To prevent over and under pressurization of the cabin

Question 15

How is the landing altitude normally set?

Answer 15

Automatically by the FMS

Question 16

How is the landing manually set?

Answer 16

By selecting MAN on the pressurization panel.

Question 17

What indicates the landing altitude is set automatically ?

Answer 17

It is shown in magenta

Question 18

What indicates the landing altitude as been set manually ?

Answer 18

It is displayed in cyan

Question 19

Where is the cabin zone temp sensor?

Answer 19

Mid cabin right side

Question 20

Where is the cockpit zone temperature sensor?

Answer 20

Left side of center pedestal next to the pilots right knee

Question 21

What is the guarded EMER DEPRESS PBA for?

Answer 21

For fresh air circulation and if fumes or smoke enter the cockpit

Question 22

What air sources can provide air to the packs?

Answer 22

Engines, APU and ground air cart

Question 23

Into what manifold does the ground air cart feed?

Answer 23

The right manifold

Question 24

What are the limitations for Trim air usage?

Answer 24

Do not use on the ground

Question 25

When must the PACK be operating while on the ground?

Answer 25

When the aircraft electrical power is on ( Batt or external power) for more than 30 min with an OAT OF >40’C

Question 26

What is the pressurization limitation during landing?

Answer 26

1.0 PSI

Question 27

When does the automatic Pull Up and Pull down function operate?

Answer 27

On the ground with the main cabin door open

Question 28

What type of air is used for pressurization?

Answer 28

IP AIR. ( Intermediate )

Question 29

Where is Delta P displayed ?

Answer 29

EICAS summary page | ECS synoptic page

Question 30

How many IASC computers does the Challenger 350 aircraft have?

Answer 30

2

Question 31

What is the temperature range in NORM mode?

Answer 31

15 - 35 degrees

Question 32

What is the temperature range in manual mode?

Answer 32

10-70 Degrees

Question 33

What valve divides the left manifold from the right manifold ?

Answer 33

Crossbreed valve

Question 34

T or F The bleed valves are pneumatically operated and electrically controlled?

Answer 34

True

Question 35

To what PSI is the intermediate pressure regulated ?

Answer 35

50 +/- 3 PSI

Question 36

To what PSI is the high pressure bleed air regulated ?

Answer 36

36 +/- 3 PSI

Question 37

For what is high pressure bleed air used?

Answer 37

For engine and wing anti ice

Question 38

What does the PACK provide?

Answer 38

Air conditioned air for fuselage compartments

Question 39

How is the APU bleed valve controlled ?

Answer 39

The APU ECU

Question 40

What computer monitors the bleed air leak detection system ?

Answer 40

IASC

Question 41

How many ozone converters are installed in the Challenger 350 aircraft ?

Answer 41

2