Pressurization

Question 1

The automatic controller limits differential pressure to a normal of:

The O/F safety valve allows a maximum differential of:

Maximum differential pressure on the ground for Takeoff or Landing:

When is the airplane pre-pressurized:

Answer 1

8.77 psid
8.915 psid
.2 psid
During the takeoff roll as the TL is advanced past 70%

Question 2

During Manual Control the Normal Maximum:

The Maximum differential of 8.915 is controlled by:

Answer 2

Must be controlled be the crew

The differential pressure valve on each O/F valve

Question 3

What does selecting ECS to EMERG do:

Answer 3

LP air form the right engine is delivered to the pressure vessel via a separate duct

Question 4

Are O/F valves visible:

Answer 4

Yes - on the belly of the aircraft, near the VHF antenna

Question 5

What are the sources for the pneumatic system on the G100:

Answer 5

Engines (Normal and Emergency)
APU (Ground ONLY)
Ram Air (in flight)
Pneumatic (Nitrogen) Bottles

Question 6

Name the pneumatic consumers:

Answer 6

Air conditioning
Ground Bypass 
Pressurization (Normal and Emergency)
Anti-Ice
De-Ice
Cabin Door Seal
Hydraulic tank pressure
Emergency gear extension 
Brake / T/R accumulator

Question 7

Which systems use only HP bleed air:

Answer 7

Nacelle Anti-Ice
Cabin Door Seal
Ground Bypass (Right Engine Only)
Augments LP bleed when the demand requires it

Question 8

What is the source of the Emergency pressure:

Answer 8

Right engine LP bleed air

Question 9

Where is the pneumatic pre-cooler located:

Where does the cooling air for the pre-cooler come form:

Answer 9

In the tailbone

Ram air from the base of the vertical stabilizer. Uses the same cooling air as the Primary and Secondary HE for the ACM

Question 10

In what configuration is the Ground Bypass valve allowed to open:

Answer 10

On the ground
Power #2 Distribution Bus
Right engine running
Right engine not in Reverse Thrust
Right engine NAC HEAT off
TLA < 42%
ECS control set to R ENG

Question 11

What’s the purpose of the Ground Bypass system:

Answer 11

Maximum cooling on the ground for G100’s with no APU

Question 12

When will cycling the MAN PRESS push button not TEST the Auto Pressure Fail light:

Answer 12

When ECS is either in RAM or EMER

Question 13

Which way would you move the CHERRY PICKER to Lower the Cabin Altitude:

Answer 13

To the LEFT (raises / increases cabin pressure / differential)