If we have one pack shut off, what should the minimum manifold pressure be?
Correct!
Wrong!
The minimum air pressure that should ever be seen in the manifold is:
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.
Correct!
Wrong!
Minimum pressures and all temperatures are set and maintained by the Bleed Air Controllers (BACs).
Correct!
Wrong!
At what pressure would the L or R BLEED PRESSURE HI amber message come on?
Correct!
Wrong!
When the left or right bleed pressure is _____ an amber L or R BLEED PRESSURE LOW message appears.
Correct!
Wrong!
The left and right bleed-air manifold pressure sensors (transducers) are _____. They provide manifold pressure readings to their respective bleed-air controllers.
Correct!
Wrong!
The maximum air pressure that should ever be seen in the manifold is:
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:
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.
Correct!
Wrong!
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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.
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.
Gulfstream G550 – Pneumatics