G550 - Pneumatics

At what pressure would the L or R BLEED PRESSURE HI amber message come on?

75 psi

35 psi

60 psi

40.5 psi

Correct! Wrong!

You must not apply external air to aircraft without electrical power at the ESS DC buses, i.e., external AC or DC power.

True

False.

Correct! Wrong!

If we have one pack shut off, what should the minimum manifold pressure be?

22 psi

14 psi

40.5 psi

35 psi

Correct! Wrong!

The APU bleed-air control system switch allows selection of the APU as a source of bleed air if the aircraft is below _____ feet AGL.

2,000

1,500

1,950

1,000

Correct! Wrong!

The high-stage valve is a electrically operated, spring-loaded-closed modulating valve. It is located at the HP eighth-stage bleed ports and is connected to the interservices fairing on each BR710 engine.

True

False

Correct! Wrong!

It is pneumatically operated! The function of the high-stage valve is to augment or replace midstage (HP5) bleed air when the bleed-air manifold temperature or pressure drops below the minimum required by the operating configuration. It has no electrical components and receives its opening servo pressures from the servo pressure regulator/torque motor as commanded by the bleed air controller.

The left and right bleed-air manifold pressure sensors (transducers) are _____. They provide manifold pressure readings to their respective bleed-air controllers.

Under the flight deck.

In the aft luggage compartment

In the tail compartment

Under the floor

Correct! Wrong!

The maximum air pressure that should ever be seen in the manifold is:

40.5 psi

35 psi

14 psi

22 psi

Correct! Wrong!

The Bleed-Air Augmentation Valve (BAAV) is a spring-loaded-closed, solenoid-controlled valve in the left bleed-air manifold. It is energized open by the ECU when starting the APU:

At or above 25,000 feet

Above 33,000 feet

Above 30,000 feet

Above 35,000 feet.

Correct! Wrong!

When the left or right bleed pressure is _____ an amber L or R BLEED PRESSURE LOW message appears.

10 psi for more than 5 seconds

7 psi (plus or minus 2 psi) for more than 10 seconds

7 psi or less

5 psi or less for more than 10 seconds

Correct! Wrong!

The minimum air pressure that should ever be seen in the manifold is:

35 psi

22 psi

10 psi

14 psi

Correct! Wrong!

Minimum pressures and all temperatures are set and maintained by the Bleed Air Controllers (BACs).

True

False.

Correct! Wrong!

Gulfstream G550 – Pneumatics

Quiz

G550 - Pneumatics

At what pressure would the L or R BLEED PRESSURE HI amber message come on?

You must not apply external air to aircraft without electrical power at the ESS DC buses, i.e., external AC or DC power.

If we have one pack shut off, what should the minimum manifold pressure be?

The APU bleed-air control system switch allows selection of the APU as a source of bleed air if the aircraft is below _____ feet AGL.

The high-stage valve is a electrically operated, spring-loaded-closed modulating valve. It is located at the HP eighth-stage bleed ports and is connected to the interservices fairing on each BR710 engine.

The left and right bleed-air manifold pressure sensors (transducers) are _____. They provide manifold pressure readings to their respective bleed-air controllers.

The maximum air pressure that should ever be seen in the manifold is:

The Bleed-Air Augmentation Valve (BAAV) is a spring-loaded-closed, solenoid-controlled valve in the left bleed-air manifold. It is energized open by the ECU when starting the APU:

When the left or right bleed pressure is _____ an amber L or R BLEED PRESSURE LOW message appears.

The minimum air pressure that should ever be seen in the manifold is:

Minimum pressures and all temperatures are set and maintained by the Bleed Air Controllers (BACs).