Ground Radar Systems Journeymen CDC 4-6 #2

100 Questions | Total Attempts: 34

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Ground Radar Systems Journeymen CDC 4-6 #2

One shops CDC practice test. Also, if some are off. Please Tell me. Thanks


Questions and Answers
  • 1. 
     The maximum allowable percent of ground slope for the radar antenna pallet is
    • A. 

      4%

    • B. 

      6%

    • C. 

      10%

    • D. 

      15%

  • 2. 
    The north mark alignment insures that your antenna oriented to within
    • A. 

      ±.25 degrees north

    • B. 

      .5degrees north

    • C. 

      1degrees north

    • D. 

      2degrees north

  • 3. 
    What is the relationship of the STALO frequency to the transmit frequency in the
    • A. 

      The STALO is 16MHz below the transmit frequency.

    • B. 

      The STALO is 16MHz above the transmit frequency.

    • C. 

      The STALO is 32 MHz below the transmit frequency.

    • D. 

      The STALO is 32 MHz above the transmit frequency.

  • 4. 
    The range and azimuth correlation of IFF and radar returns is accomplished in the
    • A. 

      IF receivers

    • B. 

      Post processor

    • C. 

      Signal processor

    • D. 

      PPI

  • 5. 
    How many modes of communication are provides to the operator in the TPS-75 radar by the communications system?
    • A. 

      4

    • B. 

      5

    • C. 

      6

    • D. 

      7

  • 6. 
    The radars initialization function in the TPS-75 is performed
    • A. 

      Manually by the operator

    • B. 

      Manually at system power-up

    • C. 

      Automatically at system power-up

    • D. 

      Automatically by the radar control panel

  • 7. 
    The serial communication interface, part of the radar control function in the TPS-75, provides a link between the radar control unit and the
    • A. 

      Six system microprocessor.

    • B. 

      Eight system microprocessor.

    • C. 

      Multibus and other system unit.

    • D. 

      MIG rack, clutter mapper, and synchronizer.

  • 8. 
      What is the frequency of the master clock signal provided by the frequency generator to the processing timing generator in the TPS-75 radar?
    • A. 

      4Mhz

    • B. 

      8Mhz

    • C. 

      16Mhz

    • D. 

      32Mhz

  • 9. 
     What are the PRT modes for the TPS-75 radar?
    • A. 

      Fixed, staggered, or burst.

    • B. 

      Fixed, staggered, pulsed.

    • C. 

      Selected, controlled, burst.

    • D. 

      Selected, controlled, or pulse

  • 10. 
     In the TPS-75 radar, a JATS jump signal is generated every
    • A. 

      180° of antenna rotation

    • B. 

      360 of antenna rotation

    • C. 

      405 of antenna rotation

    • D. 

      540 of antenna rotation

  • 11. 
    The most commonly used and normally maintenance free reflecter used for the used for the GPN-22 precision approach radar  is the
    • A. 

      Moving target indicator reflector

    • B. 

      Center-line reflector

    • C. 

      Reference reflector

    • D. 

      Bracket reflector

  • 12. 
      In the GPN-22 precision approach radar frequency diversity is used in the scan mode to eliminate
    • A. 

      Weather returns

    • B. 

      Large target fluctuations only

    • C. 

      Large target fluctuations and weather returns

    • D. 

      Large target fluctuations and provide target enhancement

  • 13. 
    In the GPN-22 precision approach radar, the coherent and non-coherent input signal data converter is
    • A. 

      Unipolar video

    • B. 

      Bipolar video

    • C. 

      Canceled unipolar video

    • D. 

      Canceled bipolar video

  • 14. 
    Once a track is established in the GPN-22 precision approach radar, what device uses error data obtain from the received signal predict where the target will be during the next track interval
    • A. 

      Target data computer (TDC)

    • B. 

      Signal data computer (SDC)

    • C. 

      Computer data entry module (CDEM)

    • D. 

      Antenna beam position control (ABPCU)

  • 15. 
     How many narrow band filters does GPN-22 precision approach radar (PAR) employ to convert a shift in IF to a range error signal?
    • A. 

      24

    • B. 

      37

    • C. 

      74

    • D. 

      137

  • 16. 
    During the target tracking cycle, in the GPN-22 precison approach radar (PAR). How many tracks does it employ to convert a shift in IF to a range error signal?
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 17. 
    At what interval does the target data computer (TDC) perform system fault monitoring?
    • A. 

      Every PRT

    • B. 

      Once every 2 secondsc.

    • C. 

      Once per track interval

    • D. 

      At beam interrupt signal time

  • 18. 
    In the GPN-22 precison approach radar (PAR), what are the three modes of operation with respect to the data loop operation?
    • A. 

      Command, input, and output

    • B. 

      Command, open-loop, closed-loop

    • C. 

      Diagnostic, operational, coherent

    • D. 

      Data point, closed-loop, self-test

  • 19. 
    The data loop interface logic circuitry used in each of the subsystem is commonly called
    • A. 

      One’s component

    • B. 

      Repeater logic

    • C. 

      Closed-loop

    • D. 

      Open-loop

  • 20. 
    Which if the following is not part of the siting info requested by the target data computer from the computer data entry(CDE)?
    • A. 

      Safety zone

    • B. 

      Elevation angle

    • C. 

      Distance to taxiway

  • 21. 
       Which indicator component’s main purpose is to control the intensity of CRT electron beam?
    • A. 

      Deflection circuits

    • B. 

      Video circuits.

    • C. 

      Power Supply

    • D. 

      Cathode-ray tube.

  • 22. 
    Digital display data from the data processing circuits is converted into analog drive signal in the
    • A. 

      Deflection circuits

    • B. 

      Video circuits

    • C. 

      Power supply

    • D. 

      CRT

  • 23. 
     Electromagnetic deflection is accomplished by applying
    • A. 

      Current through the two deflection plates

    • B. 

      Triggers to the two deflection plates

    • C. 

      Current through the deflection coil.

    • D. 

      Triggers to the deflection coil

  • 24. 
    The vacuum in a cathode-ray tube (CRT)
    • A. 

      Prevents implosion if the CRT is broken.

    • B. 

      Keeps the phosphor coating from burning

    • C. 

      Eliminates static charges on the deflection plates

    • D. 

      Prevents collision between electrons in the beam and air molecules

  • 25. 
    Is the leading edge-to-edge edge spacing between P1 and P3 of Mode 3?
    • A. 

      0.45 µsec.

    • B. 

      3 µsec.

    • C. 

      5 µsec.

    • D. 

      8 µsec.

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