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Boeing 787 Dreamliner > Air Systems > Flashcards

Flashcards in Air Systems Deck (48)
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0

The recirculation fans draw air from the cabin through filters, then reintroduce it into the cabin distribution ducts.
A. True
B. False

A.True

1

What temperature is commanded when the cabin temperature controller is at the 12 o'clock position?
• 65-85 degrees.
• 65-75 degrees.
• 70 degrees.
• 75 degrees.

• 75 degrees.

2

Recirculation fans MUST remain ON during hot weather operations unless a non- normal checklist directs otherwise.
A True
B. False

A. True

3

What does the "PACK MODE" EICAS message mean?
• a pack has tripped and requires resetting
• a pack component has failed and the pack has reverted to standby cooling.
• a bleed leak has been detected and the pack has shut down
• the associated pack is operating at maximum capacity

• a pack component has failed and the pack has reverted to standby cooling.

4

What are the uses of engine bleed air?
A. TAT probe aspiration
B. Engine anti-ice
C. Engine core heat
D. Both B and C

D. Both B and C

5

The forward cargo compartment is heated by ____?
• Forward equipment ventilation system discharge air
• Forward cargo bleed air duct
• Electric heaters in the cargo compartment
• Cabin overflow air

• Forward equipment ventilation system discharge air

6

The source of heat for the Bulk cargo compartment is:
• An insulated thermal blanket.
• PECS heat exchangers in the cargo compartment
• Cabin overflow air
• Aft equipment cooling system discharge air in conjunction with an inline electric heater.

• Aft equipment cooling system discharge air in conjunction with an inline electric heater.

7

What are the indications of a loss of forward equipment cooling on the ground? A. A horn sounds in the nose wheelwell
B. EQUIP COOLING FWD EICAS message
C. Both A and B are correct
D. Equipment cooling does not operate on the ground

C. Both A and B are correct

8

Where does the pressurization system normally get flight operating parameters?
A. From ambient pressure.
B. From the FMC flight plan data
C. From the settings on the overhead pressurization panel D. Both A and B are correct.

D. Both A and B are correct.

9

If the EICAS message PACK (L, R) is displayed, an attempt to restore pack operation may be made by pressing the AIR COND RESET switch.
A. True
B. False

A. True

10

Which of the following is true concerning pack operation in the "Standby Cooling" mode?
A. For certain internal malfunctions, a pack automatically enters the Standby Cooling mode.
B. In Standby Cooling the pack shuts down at lower altitudes and higher outside air temperatures when ambient conditions do not permit standby cooling.
C. Decreased pack cooling capacity may result in warm flight deck or cabin
temperatures at lower altitude.
D. All the above

D. All the above

11

The two outflow valves are identical and either valve is capable of full airflow and pressurization control. If either valve fails full open, loss of pressurization will occur.
A. True
B. False

A. True

12

In flight, the APU is available as an alternate bleed source.
A. True
B. False

B. False

13

When a pack overheat is detected:
• The pack switches to standby cooling
• The pack flow rate is modulated to keep the pack outlet temperature low
• The pack automatically shuts down
• The pack automatically switches pack controllers

• The pack automatically shuts down

14

With loss of inputs from the flight deck or cabin temperature controls, the pack(s) will:
• Modulate to keep pack outlet temperature between 40 -110 F.
• Keep pack outlet temperature within 20 degrees of TAT.
• Automatically shut down.
• Maintain a cabin temperature of 75 F.

• Maintain a cabin temperature of 75 F.

15

The forward equipment cooling system provides ventilation to:
• the forward lavatories and galleys.
• the bulk cargo compartment.
• the passenger video equipment.
• the E/E bay and electronic equipment on the flight deck.

• the E/E bay and electronic equipment on the flight deck.

16

Landing altitude barometric pressure correction comes from:
• the Captain’s altimeter setting.
• the FMC.
• the standby altimeter setting.
• the First Officer’s altimeter setting.

• the Captain’s altimeter setting.

17

Pushing the AIR COND RESET switch will:
A. Attempt to reset a failed recirculation fan.
B. Attempt to reset a failed (tripped) pack.
C. Reset all cabin zone temperatures to 75 degrees.
D. Both A and B are correct.

D. Both A and B are correct.

18

Why should the cabin temperature selector initially be set to the 12 o'clock position?
A. To set the maximum temperature in any zone.
B. To allow full temperature range adjustment (65 - 85 F) in cabin zones on the cabin attendant’s panel.
C. To prevent cabin overheat during low altitude flight.
D. All the above.

B. To allow full temperature range adjustment (65 - 85 F) in cabin zones on the cabin attendant’s panel.

19

What determines the pack outlet temperature?
• The average demand of all the systems.
• The master cabin temperature control.
• The zone requesting the warmest temperature.
• The zone requesting the coldest temperature.

• The zone requesting the coldest temperature.

20

When does the bulk cargo fan operate?
• When AUTO is selected on the bulk cargo temp switch.
• When LOW is selected on the bulk cargo switch.
• When OAT is between 65 - 75 degrees.
• When an aft cargo fire is detected.

• When AUTO is selected on the bulk cargo temp switch.

21

Pulling the Landing Altitude (LDG ALT) selector:
A. Displays pressurization systems indications on the EICAS display.
B. Automatically limits the cabin climb and descent to 300 ft/min.
C. Overrides the FMC altitude inputs to the cabin altitude controllers.
D. Both A and C.

D. Both A and C.

22

What has occurred when the FWD CARGO TEMP "OFF" light is illuminated amber?
A. FWD E&E cooling is in override.
B. A fire has been detected in the FWD CARGO compartment.
C. The FWD E&E exhaust fan is inoperative.
D. Any of the above.

D. Any of the above.

23

When is APU bleed air supply primarily used?
• There is no APU bleed air capability on the B787.
• Used primarily during ground operations.
• In flight above 28,000 ft.
• Engine starting

• There is no APU bleed air capability on the B787.

24

How does the automatic pressurization system keep "pressure bumps" from occuring during takeoff?
A. For takeoff, the system supplies a small positive pressure for smooth cabin altitude transitions.
B. During takeoff, both outflow valves remain closed until the aircraft altitude reaches 2000 ft.
C. Pressure relief valves provide a smooth transition from takeoff to inflight operations.
D. Both B and C .

A. For takeoff, the system supplies a small positive pressure for smooth cabin altitude transitions.

25

The use of only one A/C pack is recommended for normal ground operations.
A. True
B. False

B. False

26

Outside airflow to the cabin during normal operations may be reduced by:
• selecting a higher master cabin temperature.
• the flight attendants based on the number of occupants in the cabin.
• ensuring the UPPER and LOWER recirculation fans are ON.
• outside airflow cannot be changed.

• the flight attendants based on the number of occupants in the cabin.

27

Do the flight deck and passenger cabin temperature selectors on the air conditioning panel have a manual temperature control position?
• No, neither one can be controlled manually.
• Yes, both can be controlled manually.
• The flight deck does, however the passenger cabin does not.
• The passenger cabin does, however the flight deck does not.

• No, neither one can be controlled manually.

28

The lavatory/galley ventilation system provides smoke control for the lavs and crew rest compartments and ventilation air for the lav/galley areas.
A. True
B. False

A. True

29

With the FWD and BULK CARGO TEMP switches set to AUTO, the compartment temperature is maintained to approximately ____ F.
A. 60
B. 70
C. 80
D. None of the above.

B. 70