Pneumatics

Question 1

Trim air switch when turned on allows automatic and manual selection of pack controllers A or B enabled. True or False

Answer 1

TRUE (FCOM 2.10.5)

Question 2

Pilot auxiliary heat is provided by____ elements

Answer 2

electric (FCOM 2.20.12)

Question 3

Equipment cooling system provides cooling air for____

Answer 3

flight deck equipment and to the electrical and electronics compartment (FCOM 2.20.12)

Question 4

Cabin Altitude Controller in Cruise Mode has a maximum of___

Answer 4

8,000’ (FCOM 2.30.2)

Question 5

Landing elevation limits are___below mean sea level to___above mean sea level

Answer 5

-1,000’ to + 14,000’ (FCOM 2.30.2)

Question 6

Pack control selector switch in the normal position does

Answer 6

alternate automatically between a or b (FCOM 2.10.9)

Question 7

The flight deck fan switch on and all packs off there is no airflow to cockpit. True or False

Answer 7

FALSE - Supplies recirculated air (FCOM 2.20.4)

Question 8

Trim air switch turned on all flight deck zone trim air valves operate automatically except

Answer 8

NONE - Flight deck main deck trim valves opearate automatically

Question 9

Aft cargo heat switch ON provides bleed air heat to

Answer 9

aft and bulk cargo compartments (FCOM 2.10.8)

Question 10

Engine Bleed Air Fault Light is caused by

Answer 10

Bleed air overheat or overpressure…or PRV open when commanded closed (FCOM 2.10.16)

Question 11

Three airconditioning packs draw air from

Answer 11

engines\APU\external that supply the bleed air duct (FCOM 2.40.1)

Question 12

The pack valve is____controlled and___operated.

Answer 12

electrically, phematically (FCOM 2.20.2)

Question 13

The temperature zone requiring the warmest temperature controls the pack outlet temperature. True or False

Answer 13

FALSE

Question 14

Closing the right isolation valve will prevent bleed air from reaching hydraulic demand pump 4. True or False

Answer 14

False. (FCOM 2.40.5)

Question 15

With the pax temp selector in auto and the system operating normally, which temp. zone determines the outlet temp of the packs?

Answer 15

the zone requiring the coolest temp (FCOM 2.20.7)

Question 16

What does selecting the equipment cooling selector STDBY position do?

Answer 16

Manually reconfigures the cooling equip in flight for FLIGHT situation(FCOM 2.10.6)

Question 17

In flight, what does placing the captain’s foot heater switch to LO or HI do?

Answer 17

under floor electric heater operates at high\low rate (FCOM 2.10.12)

Question 18

Shoulder and foot heaters operate in flight only. True or False

Answer 18

TRUE (FCOM 2.10.11)

Question 19

When is the EICAS warning message CABIN ALTITUDE displayed?

Answer 19

cabin altitude > 10,000’ (FCOM 2.50.1)

Question 20

Placing the landing altitude in manual (Amber landing altitude displayed, all data is displayed landing elevation def. pressure etc)

Answer 20

Done when this data is missing from the FMS (FCOM 2.10.14)

Question 21

What does selecting the equipment cooling selector OVRD position do?

Answer 21

Provides cooling, uses reverse airflow for diff pressure. (FCOM 2.10.6)

Question 22

With a pack control selector in the NORM position, which of the following is correct? All answers correct

Answer 22

pack a or b selected automatically on alternate flights as primary controller while the other one is selected if the primary has failed (FCOM 2.10.9)

Question 23

The cabin pressurization system is normally fully automatic, but the outflow valves may be positioned manually. True or False

Answer 23

TRUE (FCOM 2.10.15)

Question 24

At what cabin altitude will the outflow valves close in the automatic mode?

Answer 24

11,000’ (FCOM 2.30.2)

Question 25

When is the EICAS advisory message PRESS RELIEF displayed?

Answer 25

when one or both pressure relief valves open with all packs on (QRH 2.27 FCOM 2.50.2)

Question 26

With the master temp set at 83 degrees f (28 deg. c), what is the maximum zone target temp setting using the cabin tamp panel?

Answer 26

85f\29c (FCOM 2.20.8)

Question 27

What does pushing the outflow valve MAN left switch on do?

Answer 27

EICAS outflow valve L displayed….outflow valve controlled manually (FCOM 2.10.14)

Question 28

Packs will be in high flow during\_\_\_\_\_

Answer 28

Takeoff….....when High Flow switch is On or takeoff\climb\approach (FCOM 2.20.2)

Question 29

Which of the following regarding failure of the selected pack controller is true?

Answer 29

Pack A or B normal, the controller switches to the other controller automatically. (FCOM 2.20.2)

Question 30

With the HI FLOW switch off, which of the following is true?

Answer 30

Pack airflow is controlled automtically (FCOM 2.10.7)

Question 31

When is the EICAS advisory message BLEED displayed and the engine bleed air system fault light illuminated?

Answer 31

bleed air overpressure, overheat, HP bleed valve\PRV fail to close when commanded (FCOM 2.40.4 FCOM 2.10.16)

Question 32

What source normally supplies engine bleed air during low thrust conditions?

Answer 32

HP engine section (FCOM 2.40.1)

Question 33

Where is pneumatic duct pressure displayed?

Answer 33

Primary and secondary ()

Question 34

What are the indications if an HP bleed valve fails to close when engine thrust is increased?

Answer 34

SYS fault light and bleed 1 advisory msg... "BLEED #" advisory on EICAS (FCOM 2.50.1)

Question 35

What does the EICAS advisory message \>BLEED 1 OFF mean?

Answer 35

Eng 1 bleed valve is close with eng running and bleed switch off (FCOM 2.50.1)

Question 36

At high engine power settings, which engine compressor section furnishes bleed air for the pneumatic system?

Answer 36

The IP section (FCOM 2.40.1)

Question 37

Pushing the APU bleed air switch on, opens the APU bleed isolation valve, with the APU running. True or False

Answer 37

True. 95% APU N1 (FCOM 2.40.3)

Question 38

The PRV will open with the engine bleed air switch off. When:

Answer 38

when nacelle anti ice selected on, provided the HP bleed valve isnt failed open, start valve closed. There isnt a prior overheat problem (FCOM 2.40.2)

Question 39

When is the EICAS advisory message BLEED ISLN L/R displayed

Answer 39

isolation valve switch position and valve position disagree (FCOM 2.50.1)

Question 40

When will the APU bleed air valve open?

Answer 40

When EICAS memo msg APU running and APU switch on

Question 41

What is bleed air used for?

Answer 41

1.Air conditioning 2.pressurization 3.Anti Ice 4.ENG start 5.LE flaps …...6 .T\R 7.hyd ADP 8.hyd reservoir pressurization 9.potable water tank 10.cargo smoke detection 11.aft cargo heat (FCOM 2.40.1)