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Flexjet Praetor 500 > Air Management > Flashcards

Air Management Flashcards

1
Q

List the items that use bleed air.

A

Environmental control system (ECS), engine start, engine wing and horizontal stabilizer anti-icing system, cargo heating system (optional) and main cabin door pressurization seal. AOM 9-02-40

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2
Q

When is the cabin temperature control transferred to the VIP seat panel?

A

When the detent C is selected to the PAX CABIN TEMPERATURE CONTROL KNOB. AOM 9-02-30

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3
Q

In the event of a bleed leak detection, what light will illuminate in addition to an associated CAS message?

A

The PACK, BLEED 1, BLEED 2 or APU BLEED the amber light. AOM 9-02-30

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4
Q

When is the Outflow Valve (OFV) indication on the Environmental Control System (ECS) synoptic page displayed?

A

It is only available on the ground. AOM 9-02-30

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5
Q

What are the potential sources of bleed air that the Pneumatic System Controller (PSC) can automatically
select from?

A

Engines, the APU and external connections. AOM 9-20-40

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6
Q

Is it possible to have bleed from the APU and the engines simultaneously?

A

No. AOM 9-02-40

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7
Q

During normal operation on the ground and for taxiing, what is the primary source of bleed air?

A

The APU. AOM 9-02-40

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8
Q

What is the primary source of bleed air in flight?

A

The engines. AOM 9-02-40

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9
Q

When will the bleed air source be automatically transitioned to the engines?

A

When the airplane starts running for takeoff (engine TLA’s higher than 50 degrees) AOM 9-02-40

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10
Q

The XBSOV (cross bleed shut off valve) is automatically commanded to close for what conditions?

A

In case of bleed leakage, over pressure, engine fire or if a failure condition is identified. AOM 9-02-40

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11
Q

Can an external ground connection be used to supply pressurized air for an engine start?

A

Yes. AOM 9-02-40

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12
Q

If an external pneumatic power source is being used and is not adjustable, what range should the pressure supply be in?

A

Between 32 psi and 60 psi. AOM 3-01-35

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13
Q

When is fast cooling enabled on hot days?

A

When the difference between the cockpit/cabin temperature set point and the cabin/cockpit zone temperature is equal to or higher than 6° C. AOM 9-02-50

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14
Q

When is fast warming enabled on cold days?

A

When the difference between the cockpit/cabin temperature set point and the cabin/cockpit zone temperature is equal to or higher than 6° C. AOM 9-02-50

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15
Q

What happens to the recirculation fan during fast cooling and fast warming operations?

A

It automatically sets a higher speed to optimize system performance. AOM 9-02-50

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16
Q

If the air conditioning pack fails what does the PSC automatically do?

A

It engages the pack backup operational mode and controls cabin and cockpit temperature. AOM 9-02-50

17
Q

What is ram air ventilation used for?

A

Non-pressurized flight or for smoke evacuation. AOM 9-02-50

18
Q

When will the PSC command the emergency RAM air door to open?

A

In case of loss of the air condition PACK and the PACK backup systems. AOM 9-02-50

19
Q

How can the emergency RAM air door be manually commanded to open?

A

Through the DUMP button on the PRESSURIZATION control panel. AOM 9-02-50

20
Q

How is the Cargo Heating System operated?

A

Automatically by the PSC. AOM 9-02-55

21
Q

When is the main cabin door pressurized seal inflated?

A

After takeoff. AOM 9-02-60

22
Q

How can the outflow valve be modulated?

A

Either automatically or manually. AOM 9-02-70

23
Q

What position are the Negative and Positive Pressure Relief Valves (NPRV and PRV) normally in?

A

Closed. AOM 9-02-70

24
Q

What does pushing in the MODE selector button on the PRESSURIZATION panel allow for?

A

Manual control of the pressurization system through the CABIN ALT knob. AOM 9-02-30

25
Q

What is the cabin altitude rate of change when moving the CABIN ALT knob UP or DN?

A

50 FPM steps. AOM 9-02-30

26
Q

What happens when the DUMP button is pressed in the automatic mode of operation?

A

The cabin is depressurized at a constant rate of change of 2,000 ft/min up to 12,000 ft and the emergency RAM air door is opened. AOM 9-02-70

27
Q

What happens when the DUMP button is pressed in the manual mode of operation?

A

The outflow valve will be commanded to full open until either the command is removed or the altitude limit function disables it when the cabin altitude reaches 14,800 ft +/- 200 ft. The emergency RAM air door is also opened. AOM 9-02-70

28
Q

What is the maximum differential pressure for a 6,000 ft cabin altitude? For a 5,800 ft cabin altitude?

A

9.64 psid; 9.73 psid AOM 2-48

29
Q

What is the maximum differential overpressure?

A

10.4 psid. AOM 2-48

30
Q

What is the maximum differential negative pressure?

A

0.5 psid. AOM 2-48

31
Q

What is the maximum differential pressure for takeoff and landing?

A

0.2 psid. AOM 2-48

Flexjet Praetor 500 (25 decks)

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