Airbus A320 - Navigation

ADIRU 3 is supplied by all the standby probes and which primary probe?

CM1’s AOA.

CM1’s Static Port.

CM1’s TAT.

CM1’s pitot.

Correct! Wrong!

The ADIRS 'ON BAT' light on the overhead panel indicates:

A battery test is being performed at the beginning of alignment.

A battery test is being performed at the beginning of alignment or the batteries are supplying at least one ADIRU.

The batteries are supplying all ADIRUs.

The battery test is being performed at the beginning of alignment or the batteries are supplying all ADIRUs.

Correct! Wrong!

The IR alignment count down stops one minute prior to accomplishment and the ALIGN lights are flashing. Why does it happen?

It is an indication that there is a disagreement between the IRs and the alignment must be restarted.

It is an indication that alignment has stopped as the present position data has not been entered from the FMGS.

It is an indication that the alignment is complete but must be acknowledged.

Correct! Wrong!

The ISIS uses:

The primary accelerometers and gyrometers to display the vertical speed of the aircraft.

The primary accelerometers and gyrometers to display the attitude of the aircraft.

Its own set of accelerometers and gyrometers to display the attitude of the aircraft.

Its own set of accelerometers and gyrometers to display the vertical speed of the aircraft.

Correct! Wrong!

With the DATA selector set to HDG, the time remaining until the completed IRS alignment is displayed on the control display. How long does it take normally?

Approximately 3 minutes.

Approximately 7 minutes.

Approximately 1 minute.

Approximately 10 minutes.

Correct! Wrong!

GPS1 supplies ADIRU 1 and GPS 2 supplies ADIRU 2. What supplies ADIRU 3?

GPS 1 and GPS 2.

GPS 2

GPS 1 or GPS 2.

GPS 1

Correct! Wrong!

The ON BAT light on the ADIRS CDU illuminates:

When one or more ADIRUs is/are supplied by airplane battery only.

When an IRU fault is detected.

Only when all IRUs are on battery power.

Correct! Wrong!

Use of the ISIS bugs function is not recommended because, in the event that both PFDs are lost in flight, when the ISIS bugs were previously set for takeoff, then for the approach, the bugs would remain at the takeoff characteristic speed settings.

False.

True.

Correct! Wrong!

On the ground, the FMGC displays the position of the aircraft using:

GPS corrected by IRS

IRS data only.

GPS data only.

IRS corrected by GPS.

Correct! Wrong!

How does the FMGS derive Vapp?

Vapp=VLS+5+1/2 surface headwind component.

Vapp=VLS+10+1/2 surface headwind component.

Vapp=VLS+10+1/3 surface headwind component.

Vapp=VLS+5+(1/3 surface headwind component).

Correct! Wrong!

What data do the ADRs (Air Data Reference) directly gather?

Airspeed/Mach, temperature, barometric altitude, AOA.

Airspeed/Mach, temperature, barometric altitude.

Airspeed/Mach, temperature, barometric altitude, AOA, ground speed.

Airspeed/Mach, temperature, barometric altitude, AOA, back-up vertical speed.

Correct! Wrong!

Can the flight crew depress the RMP ON NAV pushbutton and use the RMP for navigation simultaneously with FMGC autotuning?

Yes, because the opposite FMGC will continue to autotune navaids.

No, RMP backup tuning supersedes the autotuning function of both FMGCs.

Correct! Wrong!

How many ADIRUs (Air Data Inertial Reference Units) does the aircraft have?

Two (all active).

Two (one active, one backup).

Three (all active).

Three (two active, one back up).

Correct! Wrong!

What is the minimum RNP accuracy with GPS PRIMARY for departure and enroute?

3 NM.

1 NM.

0.3 NM.

0.5 NM.

Correct! Wrong!

What does the red area indicate on the BUSS (Back Up Speed Scale)?

Below Alpha Max.

Below VLS.

Below Alpha prot.

Below VSW.

Correct! Wrong!

The aircraft has two radio altimeters (RA). CAPT PFD displays the RA1 height, and the F/Os PFD displays the RA2 height. If one RA fails, both PFDs display the height from the remaining RA.

True.

False.

Correct! Wrong!

What is managed climb speed below 10,000 feet?

210 kt.

Green dot.

250 kt.

Best rate of climb speed.

Correct! Wrong!

The ISIS LS shall not be used for takeoff using the localizer of the opposite runway, or for a back-course localizer approach. The LOC deviations are given in the wrong sense.

False.

True.

Correct! Wrong!

The flight crew interfaces with the FMGS using the:

MCDU.

All statements are correct.

FCU.

Thrust Levers.

Correct! Wrong!

What is the minimum RNP accuracy with GPS PRIMARY on approach?

0.3 NM.

1 NM.

0.5 NM.

2 NM.

Correct! Wrong!

What are the different types of flight guidance?

Managed and selected.

Slaved and managed.

Managed and manual.

Automatic and manual.

Correct! Wrong!

What data do the IRs (Inertial Reference) directly gather?

Attitude, heading/track, aircraft position, acceleration, vertical speed, ground speed, radio altitude.

Attitude, heading/track, aircraft position, acceleration, vertical speed, ground speed.

Attitude, heading/track, aircraft position, acceleration.

Attitude, heading/track, aircraft position, acceleration, vertical speed.

Correct! Wrong!

Each ADIRU (Air Data Inertial Reference Unit) is comprised of an ADR (Air Data Reference) and IR (Inertial Reference). Can these work separately of each other in the case of a failure?

Yes.

No.

Correct! Wrong!

What are the functions of the Air Data Modules (ADMs)?

Convert initial data from the laser gyro system to numerical data for the ADIRUs.

Convert pneumatic pitot/static data from probes to numerical data for the ADIRUs.

Correct! Wrong!

An air data module is a component of the navigation system. Each unit converts pneumatic (air pressure) information from a pitot tube or a static port into numerical information which is sent on a data bus. This pressure information is received and processed by the Air Data Reference (ADR) component of the Air Data Inertial Reference Unit (ADIRU).This processed information is then sent to one or more display management computers that present information on the cockpit's primary flight display. Airspeed information is also sent to the flight computers and other electronics,including the autoflight subsystem

You have been cleared to intercept the localizer. You have pushed the LOC push button on the FCU. If all necessary data has been entered in the MCDU, can you now engage both autopilots?

No, the LOC must capture before both autopilots will engage.

Yes.

No, the APPR pushbutton must be pushed first.

Correct! Wrong!

What causes the Back Up Speed Scale (BUSS) to automatically appear?

ADR 2+3 FAULT/OFF.

ADR 1+3 FAULT/OFF.

ADR 1+2 FAULT/OFF.

ADR 1+2+3 FAULT/OFF.

Correct! Wrong!

The weather radar image can be displayed on which modes of the ND?

All modes except Plan.

Rose VOR or Rose ILS.

Rose NAV or VOR.

Rose NAV or ARC.

Correct! Wrong!

What is the minimum RNP accuracy with GPS PRIMARY in the Terminal area?

1 NM.

3 NM.

0.5 NM.

0.3 NM.

Correct! Wrong!

When electrical power is lost, ADIRU 1:

Is lost until electrical power is restored.

Remains on battery for 3 minutes until electrical power is restored.

Remains on battery power for 5 minutes until electrical power is restored.

Remains on battery power until electrical power is restored.

Correct! Wrong!

Which of the following navaids can be autotuned?

VOR and DME.

ILS and ADF (for NDB data base approaches).

All statements are correct.

Correct! Wrong!

The takeoff bias is:

Replaced when a bias is computed based on radio position.

Blended out over the next 30 minutes.

Retained for the remainder of the flight.

Blended out over the next 60 minutes.

Correct! Wrong!

The ISIS gathers inputs from:

ADIRU 1 only.

ADIRU 3 only.

ADIRU 1 + 3.

ADIRU 1 + 2.

Correct! Wrong!

What ADIRU (Air Data Inertial Reference Unit) selection modes are there ?

ATT, STBY, OFF.

NAV, ATT, OFF.

ON, STBY, OFF.

NAV, STBY, OFF.

Correct! Wrong!

An ADR1 failure results in a loss of predictive GPWS functions:

True.

False.

Correct! Wrong!

GPWS aural and visual warnings cannot be inhibited.

False

True

Correct! Wrong!

When the aircraft is on ground and if at least one ADIRU is supplied by aircraft batteries:

The ADIRU and AVNCS light comes on amber on the EXTERNAL POWER panel.

All statements are correct.

An external horn sounds

Correct! Wrong!

What computer(s) perform(s) the GP-IRS hybrid position calculation?

ADIRS 1 + 2 + 3

MMR 1+2.

FMGC 1.

FMGC 2.

Correct! Wrong!

Each IR receives input from both GPS simultaneously.

False.

True.

Correct! Wrong!

The IR will experience drift in 'ATT' position and it will need a periodic heading update.

True.

False.

Correct! Wrong!

The aircraft has _ Multi Mode Receivers (MMRs) that receive GPS data from _ satellites.

4 / 28

2 / 28

2 / 24

4 / 24

Correct! Wrong!

One A/P can be engaged on the ground if the engines are not running.

This A/P will disengage when one engine is started.

This A/P will disengage when both engines are started.

This A/P will disengage when taxi starts.

This A/P will disengage when speed is sensed at more than 10 kt.

Correct! Wrong!

The loudspeaker announces RETARD at:

20 ft at all times.

Between 15 and 20 ft with or without Autothrust.

20 ft or at 10 ft if autothrust is active and one autopilot is in LAND mode.

Correct! Wrong!

A 'fast align' of the IRs can be achieved by selecting the rotator switches OFF and then back to:

ATT within 5 seconds

NAV within 10 seconds.

ATT within 10 second.

NAV within 5 seconds.

Correct! Wrong!

Selection of the correct takeoff runway on the FMGC prior to each flight is necessary because:

Selection of the correct runway permits the FMGC to update its position at takeoff.

Selection of the correct runway insures proper pressurization.

The FADEC needs it to know how much to reduce the thrust for takeoff.

Correct! Wrong!

The Flight Path Vector (FPV) is a function of the:

ADRs.

IRs.

Correct! Wrong!

When electrical power is lost, ADIRUs 2 and 3:

Remain on battery power for 5 minutes until electrical power is restored.

Remain on battery power until electrical power is restored.

Are lost until electrical power is restored.

Remain on battery for 3 minutes until electrical power is restored.

Correct! Wrong!

The selected database date has expired. When must the active data base be changed?

Anytime prior to takeoff.

The following calendar day.

Prior to entering the preflight data.

Correct! Wrong!

What does the Back Up Speed Scale (BUSS) use to indicate altitude?

Static port data.

Pitot probe data.

AOA vane data.

GPS data.

Correct! Wrong!

When flying at cruise altitude, the aircraft navigates using radio navaids only.

False.

True.

Correct! Wrong!

The FWC generates a synthetic voice for radio height announcement below 2,500 ft. These announcements come through the cockpit loudspeakers, even if the speakers are turned off.

False.

True.

Correct! Wrong!

The ISIS is connected to:

DC BUS 2 and HOT BUS 1

AC BUS 1 and HOT BUS 2.

AC ESS BUS and HOT BUS 2.

DC ESS BUS and HOT BUS 1.

Correct! Wrong!

What data does the Back Up Speed Scale (BUSS) use to estimate airspeed?

AOA vane data.

Static port data.

GPS data.

Pitot probe data.

Correct! Wrong!

All navaids are normally autotuned by the:

MCDU.

MCDU and ADIRU.

ADIRU.

FMGC.

Correct! Wrong!

What function does 'ATT' perform on the ADIRS rotary selector?

Used to switch the IR to the standby IR’s data.

Used to retain attitude + heading information with an IR fault.

Used to retain attitude + position information with an IR fault.

Used to fast align an IR in the air only.

Correct! Wrong!

The BUSS (Back Up Speed Scale) is always reversible.

False.

True.

Correct! Wrong!

Overspeed warnings are a function of the:

ADRs (Air Data Reference).

IRs (Inertial Reference).

Correct! Wrong!

With a single RA failure:

Auto callouts are lost.

All statements are correct.

Both PFDs share a single RA.

APPR pushbutton cannot be used.

Correct! Wrong!

A flashing white 'ALIGN' indication on the ADIRS panel means:

IR alignment fault, or no present position entry after 10 min, or difference between position at shutdown and entered position exceeds 1 degree of latitude or longitude.

The respective IR is lost or there is an alignment fault

No present position entry after 10 min or the respective IR is lost.

Alignment is not available.

Correct! Wrong!

How many ADMs are there?

Six.

Eight.

Four.

Two.

Correct! Wrong!

The Back Up Speed Scale (BUSS) is available:

Below FL250.

Above FL200.

Above FL250.

Below FL200.

Correct! Wrong!

When the thrust levers are moved to the takeoff position, the FMGS updates its position at takeoff using:

IRS/DME/DME positioning.

IRS/ILS/DME positioning.

The VOR/DME currently tuned.

The navigation database and the takeoff runway entered into the MCDU by the pilot.

Correct! Wrong!

When are the Radio Altimeters self-tested?

At AC electrical power up.

During first engine start.

During second engine start.

When the gear is selected down.

Correct! Wrong!

Airbus A320 – Navigation

Quiz

Airbus A320 - Navigation

ADIRU 3 is supplied by all the standby probes and which primary probe?

The ADIRS 'ON BAT' light on the overhead panel indicates:

The IR alignment count down stops one minute prior to accomplishment and the ALIGN lights are flashing. Why does it happen?

The ISIS uses:

With the DATA selector set to HDG, the time remaining until the completed IRS alignment is displayed on the control display. How long does it take normally?

GPS1 supplies ADIRU 1 and GPS 2 supplies ADIRU 2. What supplies ADIRU 3?

The ON BAT light on the ADIRS CDU illuminates:

Use of the ISIS bugs function is not recommended because, in the event that both PFDs are lost in flight, when the ISIS bugs were previously set for takeoff, then for the approach, the bugs would remain at the takeoff characteristic speed settings.

On the ground, the FMGC displays the position of the aircraft using:

How does the FMGS derive Vapp?

What data do the ADRs (Air Data Reference) directly gather?

Can the flight crew depress the RMP ON NAV pushbutton and use the RMP for navigation simultaneously with FMGC autotuning?

How many ADIRUs (Air Data Inertial Reference Units) does the aircraft have?

What is the minimum RNP accuracy with GPS PRIMARY for departure and enroute?

What does the red area indicate on the BUSS (Back Up Speed Scale)?

The aircraft has two radio altimeters (RA). CAPT PFD displays the RA1 height, and the F/Os PFD displays the RA2 height. If one RA fails, both PFDs display the height from the remaining RA.

What is managed climb speed below 10,000 feet?

The ISIS LS shall not be used for takeoff using the localizer of the opposite runway, or for a back-course localizer approach. The LOC deviations are given in the wrong sense.

The flight crew interfaces with the FMGS using the:

What is the minimum RNP accuracy with GPS PRIMARY on approach?

What are the different types of flight guidance?

What data do the IRs (Inertial Reference) directly gather?

Each ADIRU (Air Data Inertial Reference Unit) is comprised of an ADR (Air Data Reference) and IR (Inertial Reference). Can these work separately of each other in the case of a failure?

What are the functions of the Air Data Modules (ADMs)?

You have been cleared to intercept the localizer. You have pushed the LOC push button on the FCU. If all necessary data has been entered in the MCDU, can you now engage both autopilots?

What causes the Back Up Speed Scale (BUSS) to automatically appear?

The weather radar image can be displayed on which modes of the ND?

What is the minimum RNP accuracy with GPS PRIMARY in the Terminal area?

When electrical power is lost, ADIRU 1:

Which of the following navaids can be autotuned?

The takeoff bias is:

The ISIS gathers inputs from:

What ADIRU (Air Data Inertial Reference Unit) selection modes are there ?

An ADR1 failure results in a loss of predictive GPWS functions:

GPWS aural and visual warnings cannot be inhibited.

When the aircraft is on ground and if at least one ADIRU is supplied by aircraft batteries:

What computer(s) perform(s) the GP-IRS hybrid position calculation?

Each IR receives input from both GPS simultaneously.

The IR will experience drift in 'ATT' position and it will need a periodic heading update.

The aircraft has _____ Multi Mode Receivers (MMRs) that receive GPS data from _____ satellites.

One A/P can be engaged on the ground if the engines are not running.

The loudspeaker announces RETARD at:

A 'fast align' of the IRs can be achieved by selecting the rotator switches OFF and then back to:

Selection of the correct takeoff runway on the FMGC prior to each flight is necessary because:

The Flight Path Vector (FPV) is a function of the:

When electrical power is lost, ADIRUs 2 and 3:

The selected database date has expired. When must the active data base be changed?

What does the Back Up Speed Scale (BUSS) use to indicate altitude?

When flying at cruise altitude, the aircraft navigates using radio navaids only.

The FWC generates a synthetic voice for radio height announcement below 2,500 ft. These announcements come through the cockpit loudspeakers, even if the speakers are turned off.

The ISIS is connected to:

What data does the Back Up Speed Scale (BUSS) use to estimate airspeed?

All navaids are normally autotuned by the:

What function does 'ATT' perform on the ADIRS rotary selector?

The BUSS (Back Up Speed Scale) is always reversible.

Overspeed warnings are a function of the:

With a single RA failure:

A flashing white 'ALIGN' indication on the ADIRS panel means:

How many ADMs are there?

The Back Up Speed Scale (BUSS) is available:

When the thrust levers are moved to the takeoff position, the FMGS updates its position at takeoff using:

When are the Radio Altimeters self-tested?

The aircraft has _ Multi Mode Receivers (MMRs) that receive GPS data from _ satellites.