3D156 CDC Vol. 2

124 Questions | Total Attempts: 50

SettingsSettingsSettings
3D156 CDC Vol. 2


Questions and Answers
  • 1. 
    (201) The localizer equipment shelter is generally painted what colors?
    • A. 

      International orange and white.

    • B. 

      Olive drab and black.

    • C. 

      Brown and tan.

    • D. 

      Red and White.

  • 2. 
    (201) How many assemblies support each localizer antenna?
    • A. 

      1.

    • B. 

      2.

    • C. 

      3.

    • D. 

      4.

  • 3. 
    (202) The localizer station is designed for what type of operation?
    • A. 

      Local control.

    • B. 

      Remote control.

    • C. 

      Continuous unmanned.

    • D. 

      Intermittent unmanned.

  • 4. 
    (202) How can the localizer station be controlled?
    • A. 

      Locally only.

    • B. 

      Remote only.

    • C. 

      Locally from the site or remotely from control tower or RAPCON.

    • D. 

      Remotely from the site or locally from the control tower or RAPCON.

  • 5. 
    (202) What is the maximum miles per hour (mph) wind speed the localizer equipment station is designed to withstand?
    • A. 

      50.

    • B. 

      70.

    • C. 

      90.

    • D. 

      110.

  • 6. 
    (202) How many channels do the radios in the localizer equipment station have?
    • A. 

      One.

    • B. 

      Two.

    • C. 

      Three.

    • D. 

      Four.

  • 7. 
    (202) In megahertz (MHz), the frequency range of the transmitters in the localizer equipment station is
    • A. 

      108 to 112.

    • B. 

      324 to 336.

    • C. 

      962 to 1,213.

    • D. 

      2,250 to 2,259.

  • 8. 
    (202) How many RF outputs are connected to the localizer antenna system for the course transmitter?
    • A. 

      1.

    • B. 

      2.

    • C. 

      3.

    • D. 

      4.

  • 9. 
    (202) What are the modulation frequencies in the localizer course transmitter?
    • A. 

      90,150, and 2250 Hz.

    • B. 

      150 and 2259 Hz.

    • C. 

      90, and 2259 Hz.

    • D. 

      90, 150, and 1020 Hz.

  • 10. 
    (202) What is the nominal carrier plus sideband (CSB) watt (W) output power of the course transmitter in the localizer?
    • A. 

      10.

    • B. 

      15.

    • C. 

      20.

    • D. 

      25.

  • 11. 
    (202) What is the nominal carrier plus sideband (CSB) watt (W) output power of the clearance transmitter in the localizer?
    • A. 

      10.

    • B. 

      15.

    • C. 

      20.

    • D. 

      25.

  • 12. 
    (203) What is the first basic operation of the localizer station?
    • A. 

      Monitor the radiated pattern.

    • B. 

      Radiating the pattern.

    • C. 

      Control transmitter.

    • D. 

      Update status.

  • 13. 
    (203) In the localizer, what frequency, in kilohertz (kHz), is the course (CRS) carrier transmitter?
    • A. 

      Station assigned frequency (SAF) + 4.00.

    • B. 

      SAF +4.75.

    • C. 

      SAF -4.75.

    • D. 

      SAF -4.00.

  • 14. 
    (203) What is the capture effect principle in reference to the localizer?
    • A. 

      Stronger radiated signal controls the aircraft receiver.

    • B. 

      Weaker radiated signal controls the aircraft receiver.

    • C. 

      Aircraft transmitter controls the localizer.

    • D. 

      Aircraft receiver controls the localizer.

  • 15. 
    (203) In the localizer, what frequency, in kilohertz (kHz), is the clearance (CLR) carrier transmitter?
    • A. 

      Station assigned frequency (SAF) + 4.75.

    • B. 

      SAF +4.00.

    • C. 

      SAF -4.75.

    • D. 

      SAF -4.00.

  • 16. 
    (203) The hertz (Hz) frequency of the coded tone to provide the station identification (ID) is
    • A. 

      770.

    • B. 

      1,020.

    • C. 

      1,410.

    • D. 

      2,250.

  • 17. 
    (203) How many log-periodic dipole antennas (LPD) are there in the localizer antenna array?
    • A. 

      7.

    • B. 

      10.

    • C. 

      14.

    • D. 

      16.

  • 18. 
    (203) How many monitors must detect a fault to cause an equipment transfer in the localizer?
    • A. 

      One.

    • B. 

      Two.

    • C. 

      Three.

    • D. 

      Four.

  • 19. 
    (203) Which parameter is not checked by the localizer course monitors?
    • A. 

      Course.

    • B. 

      Frequency difference.

    • C. 

      Radio frequency (RF) level.

    • D. 

      Identification (ID) precent modification.

  • 20. 
    (203) Which unit is not tied into the control unit in the localizer?
    • A. 

      Distribution unit.

    • B. 

      Changeover unit.

    • C. 

      Power supply unit.

    • D. 

      Battery backup unit.

  • 21. 
    (203) What is a function of the dual power supply in the localizer?
    • A. 

      Regulate line frequency.

    • B. 

      Display various voltages.

    • C. 

      Keep backup batteries charged.

    • D. 

      Regulate alternating current (AC) power.

  • 22. 
    (203) In watts (W) and milliwatts (mW) respectively, what is the nominal localizer course transmitter carrier-plus sideband (CSB) and sideband only (SBO) power?
    • A. 

      15, 360.

    • B. 

      10, 300.

    • C. 

      5, 190.

    • D. 

      3, 190.

  • 23. 
    (203) What is the output frequency of the synthesized frequency source (SFS) in the localizer course transmitter?
    • A. 

      Station assigned frequency (SAF).

    • B. 

      55 kilohertz (kHz).

    • C. 

      SAF +4.75 kHz.

    • D. 

      SAF -4.75 kHz.

  • 24. 
    (203) Which unit of the localizer course transmitter provides a means of suppressing the carrier in the sideband only (SBO)?
    • A. 

      Exciter.

    • B. 

      Modulator assembly.

    • C. 

      Identification keyer.

    • D. 

      Diode-switching network.

  • 25. 
    (203) What is the nominal clearance sideband only (SBO) milliwatt (mW) power in the localizer?
    • A. 

      180.

    • B. 

      300.

    • C. 

      360.

    • D. 

      450.

Back to Top Back to top