3 / 20

The EFIS control panel allows the pilots to change which of the following?

1. Altimeter pressure setting
2. ND range
3. TCAS mode
4. VOR/ADF information
5. GPWS display

  • A

    1, 2 and 4

  • B

    1, 2, 3 and 4

  • C

    2, 4 and 5

  • D

    1, 3 and 5

Refer to figures.
EASA learning objective 022.13.03.01.05 states: 'Describe the purpose of an EFIS control panel and typical selections that may be available: altimeter pressure setting; navigation display (ND) mode selector; ND range selector; ND data selector (waypoints, facilities, constraints, data, etc.); radio-navigation aids selector (VOR 1/2 or ADF 1/2); decision altitude (DA)/decision height (DH) selection.'


The correct answers to this question are taken straight from the learning objective highlighted above.

Electronic Flight Instrument Systems (EFIS) replace individual conventional flight, navigation and engine instrument displays with electronic display screens.
The 3 main types of display are:

Primary Flight Display (PFD) - combines the primary flight instruments into a single display.

Navigation Display (ND) - displays a moving map with the option to overlay this with many different types of navigation information.

Engine Instruments and Systems Displays - displays engine parameters and aircraft system status .

The data content displayed on the PFD/ND and instrument settings such as altimeter reference and decision heights can be controlled by each pilot via their respective EFIS control panels. These control panels differ slighty depending on aircraft type but will typically always include the following controls:

  • PFD altimeter pressure setting
  • PFD decision altitude/height setting
  • ND display mode
  • ND display range
  • ND radio aids display (VOR/ADF)
  • ND data display overlay options such as weather (WX), airports (ARPT), waypoints (WPT), terrain (TERR), navigation aids (STA), constraints (CSTR)

Note: The question uses the word 'change'. You can change the altimeter setting, ND range and whether VOR/ADF infomation is displayed but you can't change the Traffic Alert and Collision Avoidance System (TCAS) modes or GPWS display. The terrain display is only available when EGPWS/TAWS equipment is fitted not GPWS.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

  • United Kingdom
    42
  • Austro Control
    39
  • Germany
    12
  • Poland
    9
  • Ireland
    8
  • Malta
    8
  • Greece
    7
  • Sweden
    7
  • Switzerland
    7
  • Spain
    6
  • Norway
    5
  • Romania
    5
  • Azerbaijan
    4
  • Portugal
    3
  • Bulgaria
    2
  • Czech Republic
    2
  • Denmark
    2
  • Finland
    2
  • Hungary
    2
  • Italy
    2
  • Luxembourg
    2
  • Iceland
    1
  • Latvia
    1
  • Lithuania
    1
  • Slovakia
    1
  • Thailand
    1