Practice Test Geeks(AET) Aircraft Electronics Technician Practice Test
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Navigation Equipment Flashcards

7 cards from real AET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Navigation Equipment flashcards as text

  1. What is the purpose of the Marker Beacon receiver in an ILS approach system?

    Answer: Identifies specific distance fixes along the approach path

    Marker beacons (outer, middle, inner) transmit upward-directed 75 MHz signals that identify specific distance points along the ILS approach path.

  2. In a Weather Radar system, what does the color red typically represent on the display?

    Answer: Heavy precipitation, avoidance recommended

    In standard weather radar color coding, red indicates heavy precipitation with potential turbulence, and pilots are advised to avoid these areas.

  3. What navigation system uses the time difference of arrival (TDOA) of signals from multiple ground stations?

    Answer: LORAN-C

    LORAN-C determines position by measuring the time difference of arrival of pulsed signals from a chain of synchronized ground transmitters.

  4. What is the function of the flight management system (FMS) VNAV mode?

    Answer: Manages vertical profile including climbs, descents, and speed

    VNAV (Vertical Navigation) manages the aircraft's vertical flight profile, including climb/descent rates, crossing altitudes, and speed targets to meet flight plan constraints.

  5. A TCAS II system issues a Resolution Advisory (RA). What must the flight crew do?

    Answer: Follow the RA maneuver immediately regardless of ATC instructions

    FAA regulations and ICAO standards require crews to follow TCAS II Resolution Advisories immediately, as the system coordinates escape maneuvers between conflicting aircraft.

  6. What is the purpose of Wide Area Augmentation System (WAAS) ground stations?

    Answer: Monitor GPS satellites and broadcast integrity and correction data

    WAAS ground reference stations monitor GPS satellite signals, compute corrections for errors, and uplink correction messages via geostationary satellites to improve GPS accuracy and integrity.

  7. What frequency range is used by the ADF system's NDB ground stations?

    Answer: 190–1750 kHz LF/MF

    Non-Directional Beacons (NDB) transmit in the low frequency/medium frequency range of 190–1750 kHz, which ADF receivers tune to determine bearing.