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EMB 550 > Air Management RKA Questions > Flashcards

Air Management RKA Questions Flashcards

1
Q

List the items that use Bleed Air:

A
  1. Environmental Control System (ECS)
  2. Engine Start
  3. Engine, Wing, and Horizontal Stabilizer Anti-Icing System
  4. Cargo Heating System (optional)
  5. Main Cabin Door Pressurized 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 on 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 BLEED APU 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
  1. Engines
  2. APU
  3. External Connections

(AOM 9-02-40)

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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 it’s Takeoff Run

(Engine TLAs higher than 50 °)

(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
  1. In case of Bleed Leakage
  2. Overpressure
  3. Engine fire
  4. 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 cabin/cockpit 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 cabin/cockpit temperature set point and the cabin/cockpit zone temperature is equal to or greater 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
  1. Non-Pressurized flight
  2. Smoke Evacuation

(AOM 9-02-50)

18
Q

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

A
  1. In case of LOSS of the (ECS) air conditioning 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
  1. Automatically (or)
  2. 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 ft/min increments

(AOM 9-02-30)

26
Q

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

A
  1. The Cabin is depressurized at a constant rate of change of 2,000 ft/min up to 12,000 ft
  2. Emergency RAM air door is opens

AOM 9-02-70)

27
Q

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

A
  1. The cabin rate of change will INCREASE with the duration of the dump command; until either the command is removed, or the altitude-limit function disables it when the cabin altitude reaches:

14,800 ft±200 ft.

  1. RAM air door is also OPENED (AOM 9-02-70)
28
Q

What is the maximum differential pressure?

A

9.73 psid (5,800’ Cabin)

(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)

EMB 550 (25 decks)

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