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Airbus 320 > Navigation > Flashcards

Navigation Flashcards

1
Q

How many ADIRUs are there?

A

3

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2
Q

How many probes are there?

A
  • 6 static
  • 3 pitot
  • 3 AOA
  • 2 TAT
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3
Q

What is the purpose of an Air Data Module?

A

Converts pneumatic signals to digital

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4
Q

What is the TAT input to ADIRU 3?

A

CPT TAT probe

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5
Q

How many GPS receivers are there?

A
  1. Integrated in the MMRs.
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6
Q

Which MMR provide GPS signal to ADIRU 3?

A

MMR 1

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7
Q

Which ADIRU provides inputs to the DDRMI?

A

ADIRU 1 and 3

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8
Q

What is the purpose of the ATT HDG switch on the switching panel?

A

Provides alternate IR data from ADIRU 3 to CPT PFD/ND and DDRMI or to F/O PFD/ND.

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9
Q

What is the purpose of the AIR DATA switch on the switching panel?

A

Provides alternate air data from ADIRU 3 to CPT PFD/ND I or to F/O PFD/ND.

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10
Q

What happens when you switch off the ADR pushbutton?

A

Disconnects the air data section of the respective ADIRU

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11
Q

What is the meaning of a flashing IR FAULT light?

A

Attitude and heading of the IR can be recovered.

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12
Q

What is the meaning of an illuminated ON BAT light on the ADIRU panel?

A
  • One or more ADIRUs on battery power

- Momentary at beginning of alignment during battery test.

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13
Q

How many VOR receivers are installed?

A

2

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14
Q

What is the meaning of an “R” symbol on the ND next to the VOR information?

A

VOR is manually tuned through the Radio Management Panel.

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15
Q

What color are VOR needles on the ND?

A

White

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16
Q

Under normal operations, which ND will display ILS 1 information?

A

F/O ND

17
Q

When is the ILS course dagger shown on the ND?

A

When the LS button is pressed

18
Q

Can all navigation receivers be tuned by one FMGC?

A

Not under normal operations, but they can if one FMGC is failed.

19
Q

How is standby nav activated?

A

By pressing STBY NAV on BOTH RMPs

20
Q

Is the ILS information displayed on the PFD during standby navigation?

A

No

21
Q

What transponder data will be transmitted on the ground with the selector in AUTO?

A

Mode S only

22
Q

How is the ADIRU source to the transponder selected?

A

With the Air Data switch on the switching panel.

23
Q

Will failure of one Radio Altimeter remove RA indications from that respective PFD?

A

No. Other RA information will display on both PFDs.

24
Q

When does the RA display turn amber?

A
  • Below 400’ (with no DH)

- Below DH+100’ (with DH)

25
Q

What is the significance of a dual Radio Altimeter failure?

A
  • Direct law when the gear is extended

- CAT 1 ILS only, APPR pushbutton not functional

26
Q

How many WX radar systems and antennas are there?

A

2 systems but only one antenna

27
Q

What is the display range for turbulence on the WX display?

A

40 nm

28
Q

Does GPWS or Stall warning have priority?

A

Stall warning or W/S will inhibit GPWS

29
Q

What is the EGPWS caution and warning envelope?

A

Caution - 60 seconds

Warning - 30 seconds

30
Q

How is terrain on ND greater than 500’ below the aircraft displayed?

A

Various green colors

31
Q

What is the relative altitude of yellow terrain on ND?

A

From 500’ below to 2000’ above aircraft

32
Q

How is terrain on ND greater than 2000’ above the aircraft displayed?

A

Red

33
Q

Will EGPWS caution and warnings display terrain on ND with the switch OFF?

A

Yes

34
Q

How many TCAS systems are installed?

A

Single computer but two antennas

35
Q

How many TCAS threats will be displayed on ND maximum?

A

8

36
Q

What is the Closest Point of Approach that will trigger a TCAS RA?

A

25 seconds

37
Q

What is the Closest Point of Approach that will trigger a TCAS TA?

A

40 seconds

Airbus 320 (15 decks)

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