Autoflight V-Prep

Question 1

How does the FMGS compute the aircrafts position?

Answer 1

Through the Air Data and Inertial Reference system (ADIRS) (both horizontally and vertically) and
Radio navaids

Question 2

How does the FMGS know where the aircraft wants to go and how its going to get there?

Answer 2

By utilizing the Flight Management and Guidance Computer (FMGC)

Question 3

How is the FMGC programmed?

Answer 3

Though the Multipurpose Control and Display Unit (MCDU)

Question 4

What does the FMGC command to guide the aircraft?

Answer 4

The Autopilot and Flight Director

Question 5

Under normal conditions, Which FMGC is controlling AP1 and FD1?

Answer 5

FMGC 1

Question 6

Under normal conditions, Which FMGC is controlling AP2 and FD2?

Answer 6

FMGC2

Question 7

Which system controls the speed and thrust required by the FMGC (or selected on the FCU by the pilots)?

Answer 7

The Auto Thrust System (A/THR)

Question 8

In all cases the automatic flight controls can be disengaged and the aircraft can be manually flown using the sidestick and manual thrust. True/False?

Answer 8

True

Question 9

When is A/THR automatically engaged on take-off?

Answer 9

When the thrust levers are set to the FLX/MCT gate or TOGA

Question 10

What position are the thrust levers set for climb, cruise and descent?

Answer 10

CLB gate

Question 11

Is auto thrust active when flying on one engine with the thrust lever in the MCT gate?

Answer 11

Yes

Question 12

When auto thrust is active do the thrust levers move with thrust changes?

Answer 12

No

Question 13

What does setting idle thrust above 50ft RA do to auto thrust?

Answer 13

Disconnects it

Question 14

What can happen if thrust levers are not in the correct position?

Answer 14

Speed or thrust requirements may not be met

Question 15

What does selecting reverse thrust do to the auto thrust?

Answer 15

Disconnects it

Question 16

What is the procedure for disconnecting auto thrust manually?

Answer 16

1. Move thrust levers out of CLB gate
2. Align thrust with blue doughnut (TLA)
3. Press instinctive disconnect

Question 17

Which window is always displayed (not dashed lines) on the FCU?

Answer 17

The altitude window

Question 18

After what time will the FCU selection remain in Managed if the pilot does not pull the:

a) HDG knob?
b) SPD knob?

Answer 18

a) 45sec

b) 10sec

Question 19

What must be chencged prior to selecting V/S?

Answer 19

Altitude

Question 20

When, after take-off, can the autopilot be engaged?

Answer 20

5 sec or 100ft

Question 21

When, prior to landing, must the autopilot be disengaged?

Answer 21

DH, or

Rollout on an autoland

Question 22

Only when can both autopilots be engaged?

Answer 22

When on an ILS approach

Question 23

How is the AP normally disengaged?

Answer 23

Red pb switch on sidestick

Question 24

If the pilot does not wish to follow the FD commands, why should both FD’s be switched off?

Answer 24

To allow the A/THR to command the aircraft in speed mode and not take orders from the FMGC

Question 25

What controls the information on the ND?

Answer 25

- EFIS control panel - TERRAIN pb - Weather radar - Transponder

Question 26

How many ADIRU's are there?

Answer 26

3

Question 27

ADIRU's supply information to....?

Answer 27

- FMGC's - PFD's - ND's - Flight Control Computers - Pressurisation system

Question 28

a) ADIRU 1 normally supplies information to....? b) ADIRU 2 normally supplies information to.....? c) ADIRU 3 ?

Answer 28

a) Captains instruments b) FO's instruments c) Standby system. Backup for Captains or FO's instruments in the event of a failure

Question 29

The ADIRU's have two separate components. What are they?

Answer 29

The Air Data Reference Unit (ADR) | The Inertial Referece System (IRS)

Question 30

Can the ADR and the IRS work independently of the other in case of a failure?

Answer 30

Yes | (eg. ADR1 Fault, IR 1 still operational

Question 31

What information do the ADR's supply to the displays?

Answer 31

Altitude Airspeed Angle of attack Temperature

Question 32

Each ADR system has its own set of heated probes on the forward section of the fuselage. How many: a) static? b) pitot? c) angle of attack? d) TAT?

Answer 32

a) 6 static b) 3 pitot c) 3 angle of attack d) Only 2 TAT. Captains TAT supplies ADR 1 and 3

Question 33

Angle of attack probes feed information directly into the ADR's. T/F?

Answer 33

True

Question 34

Where does the analogue information from Static, pitot and TAT probes go to be converted to digital information?

Answer 34

To the 8 Air Data Modules (ADM's), | and then to the ADR's for processing.

Question 35

What information do the IRS supply?

Answer 35

``` Acceleration Attitude Vertical acceleration Direction (FPV, Track, Hdg and rotational rates around all 3 axis) Ground speed Position ```

Question 36

What type of gyroscope does each IRS have?

Answer 36

A laser ring gyroscope which has no moving parts.

Question 37

Do the IRS receive information from GPS receivers?

Answer 37

Yes

Question 38

On the ADIRU panel are the Tracks/Wind/HDG with reference to magnetic north or true north?

Answer 38

True North

Question 39

a) When will the ON BATT light illuminate on the ADIRU panel? b) What also accompanies the ON BATT light when on the ground?

Answer 39

a) Briefly at the beginning of alignment, and When any IRS is supplied from the aircraft battery only b) An external horn and the ADIRU & AVNCS light illuminate on the external power panel.

Question 40

What does IR FAULT light on the overhead panel indicate?

Answer 40

The IRS is lost

Question 41

What does a flashing IR FAULT light indicate?

Answer 41

Attitude and heading information may be recovered in the ATT mode

Question 42

When will the IRS ALIGN light illumitate?

Answer 42

While the IRS is in alignment

Question 43

When will the IRS ALIGN light go out?

Answer 43

When alignment is complete

Question 44

When will the ALIGN light on the overhead panel flash?

Answer 44

If no airfield position is inserted in the MCDU after 10mins, or If there is a fault detected in the IRS, or if the airfield position entered and the shutdown position remembered by the IRS is greater than 1deg of latitude or longuitude.

Question 45

How long does full alignment take?

Answer 45

10 minutes

Question 46

What does the ATT position do?

Answer 46

supplies attitude and heading information if the system loses its ability to navigate

Question 47

When will the ADR FAULT light illluminate?

Answer 47

If a fault is detected in any part of the ADR

Question 48

How often does heading information need to be entered into the ADIRU (or MCDU if this function is available) when operating in the ATT mode

Answer 48

Every 10 mins

Question 49

How can the pilot access ADIRU 3 information should ADR or IRS fail?

Answer 49

By using the Switching Panel