Z3D153 - 2016 Edit Code 3, Volume 2 Part 4

20 Questions | Total Attempts: 92

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Z3D153 Quizzes & Trivia

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Questions and Answers
  • 1. 
    Which type of polarization is used to radiate a signal using a helical satellite antenna?
    • A. 

      Horizontal.

    • B. 

      Vertical.

    • C. 

      Circular.

    • D. 

      Linear.

  • 2. 
    This type of antenna is used to transmit and receive microwave signals.
    • A. 

      Horn.

    • B. 

      Whip.

    • C. 

      Helical.

    • D. 

      Log-periodic.

  • 3. 
    Where are aircraft antennas normally housed?
    • A. 

      Inside nonconductive radomes outside or flush with the fuselage.

    • B. 

      Inside conductive radomes outside or flush with the fuselage.

    • C. 

      Outside nonconductive radomes outside the fuselage.

    • D. 

      Inside conductive radomes flush with the fuselage.

  • 4. 
    At which vertical angles should the multi-hop, long-distance transmission be used in airborne antenna applications for frequencies in the upper portion of the high-frequency (HF) band?
    • A. 

      90 and 180 degrees.

    • B. 

      60 and 90 degrees.

    • C. 

      30 and 60 degrees.

    • D. 

      5 and 30 degrees.

  • 5. 
    This is the best way to orient line-of-sight (LOS) antennas.
    • A. 

      Toward the true north bearing.

    • B. 

      Away from the receiving station.

    • C. 

      Away from the magnetic north bearing.

    • D. 

      In a straight path to the receiving station.

  • 6. 
    When siting a radio station, which type of foliage would have a more adverse effect on radio-wave propagation?
    • A. 

      Broadleaf trees.

    • B. 

      Evergreen trees.

    • C. 

      Swamp grass.

    • D. 

      Sagebrush.

  • 7. 
    This has the greatest effect on an antenna’s radiation pattern.
    • A. 

      Sun.

    • B. 

      Earth.

    • C. 

      Operator.

    • D. 

      Ionosphere.

  • 8. 
    This is one fundamental rule about camouflage.
    • A. 

      Sawed-off branches and foliage should not be used.

    • B. 

      Site should be visualized from above.

    • C. 

      Equipment should be widely separated.

    • D. 

      Straight lines are obvious.

  • 9. 
    This is the most effective type of antennas in mountainous terrain that has a mountain between you and the distant end.
    • A. 

      Whip.

    • B. 

      Dipole.

    • C. 

      Discone.

    • D. 

      Near-vertical incidence sky-wave.

  • 10. 
    Which electronic warfare (EW) component responds to a tasking to search for, intercept, identify, and locate intentional and unintentional sources of radiated energy?
    • A. 

      Attack.

    • B. 

      Control.

    • C. 

      Support.

    • D. 

      Protection.

  • 11. 
    Electromagnetic (EM) deception, as it applies to electronic warfare (EW), is
    • A. 

      Controlling the information an enemy receives.

    • B. 

      Eliminating some, or all, of an adversary’s electronic defenses.

    • C. 

      Conveying misleading information to an enemy through the deliberate radiation of EM energy.

    • D. 

      Degrading, or interfering with, the enemy’s use of the EM spectrum to limit an enemy’s combat capabilities.

  • 12. 
    In frequency-hopping (FH) operations, the interval at which each transmitter remains on a given frequency for a specific time is known as
    • A. 

      Dwell time.

    • B. 

      Hopping rate.

    • C. 

      Frequency offset.

    • D. 

      Transmitter velocity.

  • 13. 
    Which type of hopping-rate category changes frequencies approximately 100 times per second?
    • A. 

      Slow.

    • B. 

      Medium.

    • C. 

      Fast.

    • D. 

      Conference.

  • 14. 
    What does the term "ICOM" indicate?
    • A. 

      Internal call-out module.

    • B. 

      Intelligent communications.

    • C. 

      Integrated communications.

    • D. 

      Integrated communications security.

  • 15. 
    Which statement best identifies the requirements for two transceivers to establish HAVE QUICK (HQ) communications?
    • A. 

      They must be the same model number.

    • B. 

      They must be the same version of transceiver.

    • C. 

      They must be use the same encryption variables.

    • D. 

      They must have the same word of day (WOD) and time of day (TOD).

  • 16. 
    How long is each word-of-day (WOD) used with the HAVE QUICK II (HQII) communications multiple word-of-day (MWOD)?
    • A. 

      Until manually changed.

    • B. 

      3 days.

    • C. 

      48 hours.

    • D. 

      24 hours.

  • 17. 
    Which tactical data link (TDL) is a secure, full-duplex, point-to-point digital data link that uses satellite, microwave, or terrestrial cable, as opposed to a modulated waveform, to transmit data?
    • A. 

      Link 4.

    • B. 

      Link 11.

    • C. 

      Link 11B.

    • D. 

      Link 16.

  • 18. 
    Which multiple channel access method eliminates the requirement for a net control station (NCS) in the joint tactical information distribution system (JTIDS) by providing node-less communications network architecture?
    • A. 

      Code division.

    • B. 

      Time division.

    • C. 

      Space division.

    • D. 

      Frequency division.

  • 19. 
    The Air Force integrates with modified close air support aircraft with digitized battlefield information using this type of network.
    • A. 

      Single channel (SC) ground and airborne radio system.

    • B. 

      Enhanced position location reporting system (EPLRS).

    • C. 

      Joint tactical information distribution system (JTIDS).

    • D. 

      Situation awareness data link (SADL).

  • 20. 
    Which type of advanced waveform was designed to operate on manned, vehicular-based communication systems?
    • A. 

      Soldier radio.

    • B. 

      Wideband networking.

    • C. 

      Mobile user objective system.

    • D. 

      Adaptive network wideband waveform (ANW2).