2a553a 2011 Vol 4

25 Questions | Total Attempts: 104

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CDC Quizzes & Trivia

2011 online CDC course URE questions


Questions and Answers
  • 1. 
    (601) What is the purpose of the very-high frequency omnirange system?
    • A. 

      Determine up/down guidance

    • B. 

      Determine left/right guidance

    • C. 

      Determine bearing to a station

    • D. 

      Indicate distances along the approach

  • 2. 
    (601) The basic operating principle of very-high frequency omnirange is phase comparing the
    • A. 

      30-Hz reference and 9,960-Hz frequency-modulated (FM) signals

    • B. 

      30-Hertz (Hz) reference and 30-Hz variable signals

    • C. 

      30-Hz variable and 9,960-Hz FM signals

    • D. 

      90- and 150-Hz modulated signals

  • 3. 
    (601) If the magnetic bearing to a very-high frequency omnirange station is 225°, the phase difference between the 30-Hertz (Hz) reference and 30-Hz variable signals is
    • A. 

      15°

    • B. 

      45°

    • C. 

      135°

    • D. 

      225°

  • 4. 
    (601) Very-high frequency omnirange aural (station identification) signals are transmitted
    • A. 

      Continuously

    • B. 

      At 20-second intervals

    • C. 

      At 30-second intervals

    • D. 

      At specified time intervals

  • 5. 
    (602) The instrument landing system localizer course width at a distance of 10 miles from the transmitter is normally
    • A. 

    • B. 

      2.5°

    • C. 

      0.7°

    • D. 

      0.5°

  • 6. 
    (602) What frequency band is used to transmit instrument landing system glide slope information?
    • A. 

      Low frequency

    • B. 

      High frequency

    • C. 

      Ultra-high frequency

    • D. 

      Very-high frequency

  • 7. 
    (602) The instrument landing system marker beacon carrier frequency is
    • A. 

      68.1 kilohertz (kHz)

    • B. 

      68.1 megahertz (MHz)

    • C. 

      75 kHz

    • D. 

      75 MHz

  • 8. 
    (603) What microwave landing system outputs are provided to the pilot’s and copilot’s horizontal situation and attitude director indicators for approach and takeoff?
    • A. 

      Azimuth signals

    • B. 

      Elevation signals

    • C. 

      Steering indications

    • D. 

      Ground station indications

  • 9. 
    (603) What is not a microwave landing system output?
    • A. 

      Azimuth deviation

    • B. 

      Glide slope deviation

    • C. 

      Azimuth warning flag

    • D. 

      Glide slope correction flag

  • 10. 
    (603) On how many channels are the microwave landing system receivers capable of operating?
    • A. 

      200

    • B. 

      500

    • C. 

      559

    • D. 

      669

  • 11. 
    (603) What is the frequency range of the microwave landing system receivers?
    • A. 

      200 – 500 megahertz (MHz)

    • B. 

      500 – 669 MHz

    • C. 

      669 – 5031 MHz

    • D. 

      5031 – 5091 MHz

  • 12. 
    (603) Which antennas are shared by microwave landing system numbers 1 and 2?
    • A. 

      1 and 2

    • B. 

      1 and 3

    • C. 

      3 and 2

    • D. 

      3 and 4

  • 13. 
    (603) Which microwave landing system component allows for selection of system status?
    • A. 

      Data bus coupler

    • B. 

      Receiver power on relay

    • C. 

      Flight director mode selector

    • D. 

      Integrated display computer unit

  • 14. 
    604) When an instrument landing system frequency is selected, the ARN–127 very-high frequency omnirange receiver parks the horizontal situation indicator bearing pointer at the
    • A. 

      3 o’clock position

    • B. 

      4 o’clock position

    • C. 

      6 o’clock position

    • D. 

      10 o’clock position

  • 15. 
    (605) Which radial will the aircraft be positioned on if the aircraft is located north of the veryhigh frequency omnirange station?
    • A. 

      270°

    • B. 

      180°

    • C. 

      090°

    • D. 

      000°

  • 16. 
    (605) To get a FROM flag in view on the horizontal situation indicator when the magnetic bearing to the very-high frequency omnirange station is 75°, the selected course should be manually set to
    • A. 

      75°

    • B. 

      150°

    • C. 

      210°

    • D. 

      360°

  • 17. 
    (606) During instrument landing system operation, a full-scale deflection of the horizontal situation indicator vertical needle indicates the aircraft is off course from the runway centerline by
    • A. 

      200 feet

    • B. 

      400 feet

    • C. 

      0.6°

    • D. 

      2.5°

  • 18. 
    (606) In instrument landing system operation, a deflection of two dots on the attitude director indicator glide slope deviation scale indicates the aircraft is
    • A. 

      0.25° off glide path

    • B. 

      2.5° off glide path

    • C. 

      0.6° off glide path

    • D. 

      6.0° off glide path

  • 19. 
    (606) When the instrument landing system marker beacon amber (orange) lamp illuminates, the pilot hears a
    • A. 

      400-Hertz (Hz) tone

    • B. 

      3,000-Hz tone

    • C. 

      1,000-Hz tone

    • D. 

      1,300-Hz tone

  • 20. 
    (607) The total number of very-high frequency omnirange/instrument landing system (VOR/ILS) channels that can be selected by the AN/ARN–147 VOR/ILS control box is
    • A. 

      40

    • B. 

      160

    • C. 

      200

    • D. 

      540

  • 21. 
    (607) If the very-high frequency omnirange station signal is lost or the receiver malfunctions, the ARN–147 system parks the bearing pointer at the
    • A. 

      3 o’clock position

    • B. 

      6 o’clock position

    • C. 

      9 o’clock position

    • D. 

      12 o’clock position

  • 22. 
    (607) In very-high frequency omnirange (VOR) mode, what information is sent to the horizontal situation indicator by the ARN–147 VOR/localizer receiver?
    • A. 

      TO/FROM, heading, and relative bearing

    • B. 

      Relative bearing, flag alarm, and heading

    • C. 

      Flag alarm, distance, and left/right deviation

    • D. 

      Left/right deviation, flag alarm, and TO/FROM

  • 23. 
    (607) What glide slope information is provided to the attitude director indicator when the AN/ARN–127 is operating in the instrument landing system mode?
    • A. 

      Audio signals

    • B. 

      Navigation signals

    • C. 

      Up/down deviations

    • D. 

      Left/right deviations

  • 24. 
    (608) The main reference burst is transmitted when the main lobe of the tactical air navigation surface beacon radiation pattern is due
    • A. 

      North

    • B. 

      South

    • C. 

      East

    • D. 

      West

  • 25. 
    (608) A tactical air navigation surface beacon provides a station identification code (beacon identity tone) every
    • A. 

      7.5 seconds

    • B. 

      20 seconds

    • C. 

      30 seconds

    • D. 

      40 seconds

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