Communications - Electronics Journeyman CDC 2EX5X Test 3

100 Questions | Total Attempts: 210

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Test 3 of Multiple Choice on Volumes 1-3 of Career Development Course 2EX5X


Questions and Answers
  • 1. 
    What type of Air Force Specialty Code identifies the authorized manning position to which you're assigned and reflects the job you are currently performing?
    • A. 

      Duty

    • B. 

      Control

    • C. 

      Primary

    • D. 

      Alternate

  • 2. 
    How many primary Air Force Specialt Codes are in the Communications-Electronics career field?
    • A. 

      Seven

    • B. 

      Eight

    • C. 

      Nine

    • D. 

      Ten

  • 3. 
    What are the 3 components of Air Force On the Job Training?
    • A. 

      Job knowledge, job proficiency, and job experience

    • B. 

      Task knowledge, task performance, and job experience

    • C. 

      Career development courses, qualification training packages, and job training

    • D. 

      Career field education and training plan, job qualification standards, and AF Form 623

  • 4. 
    With the exception of Strips for Exceptional Performers promotes and Air Reserve Component personnel, when do personnel who are selected for promotions to SSgt enter 7 level upgrade training?
    • A. 

      1 January

    • B. 

      1 April

    • C. 

      1 June

    • D. 

      1 September

  • 5. 
    What assigned maintenance responsibility provides an experienced managerial and technical perspective to the maintenance activity by advising and assisting the chief of maintenance?
    • A. 

      Branch chief

    • B. 

      Unit Commander

    • C. 

      Maintenance Supervisor

    • D. 

      Maintenance Superintendent

  • 6. 
    What serves as a unique identifier for tracking maintenance actions for an epuipment malfunction?
    • A. 

      Work unit code

    • B. 

      How Malfunction

    • C. 

      When discovered

    • D. 

      Job Control Number

  • 7. 
    Which of the following condition do we use for not mission capable maintenance?
    • A. 

      When systems and equipment are not capable of preforming any of their assigned missions b/c of unit level maintenance requirements

    • B. 

      When systems and equipment are not capable of preforming any of their assigned missions b/c of maintenance work stoppage due to a supply shortage

    • C. 

      When systems and equipment are capable of preforming any of their assigned missions b/c of unit level maintenance requirements

    • D. 

      When systems and equipment are capable of preforming any of their assigned missions b/c of maintenance work stoppage due to a supply shortage

  • 8. 
    What term has an expandability, recoverability, reparability code (ERRC) of XD (x) of XF (x)?
    • A. 

      Due-out

    • B. 

      Awaiting parts

    • C. 

      Due in from maintenance

    • D. 

      Equipment inoperative for parts

  • 9. 
    If a system is to co-exist with an air force local area network/metropolitan area network/wide area network infrastructure, what is required before the system is integrated with the network?
    • A. 

      Unit commander approval

    • B. 

      Certification of networthiness

    • C. 

      A satisfactory quality assurance inspection

    • D. 

      System records incorporated

  • 10. 
    What communications standardization and evaluation program evaluation provides the unit commander, chief of maintenance and supervisors with factual, objective assessments of a sections ability to meet its mission requirements?
    • A. 

      Special

    • B. 

      Technical

    • C. 

      Personnel

    • D. 

      Managerial

  • 11. 
    What category of maintenance enables the chief of maintenance to coordinate and direct the maintenance effort with either a separated maintenance staff or a consolidated maintenance staff?
    • A. 

      Category I

    • B. 

      Category II

    • C. 

      Category III

    • D. 

      Category IV

  • 12. 
    What purpose of modulation involves modulating low frequency signals for transmission over long distances?
    • A. 

      Spectrum conversion

    • B. 

      Channel allocation

    • C. 

      Ease of Radiation

    • D. 

      Companding

  • 13. 
    What factor determines the spacing of the sidebands in an amplitude modulated signal?
    • A. 

      Amplitude of the modulating signal

    • B. 

      Frequency of the modulating signal

    • C. 

      Amplitude of the carrier signal

    • D. 

      Frequency of the carrier signal

  • 14. 
    A 10 kHz modulating signal has enough peak voltage to cause a deviation of 30 kHz. What is the modulation index?
    • A. 

      5

    • B. 

      0.5

    • C. 

      0.3

    • D. 

      3

  • 15. 
    By using 8-PSK, instead of binary phase shift  keying, information capacity is increased
    • A. 

      Twice

    • B. 

      Three times

    • C. 

      Four times

    • D. 

      Five times

  • 16. 
    What part of the pulse code modulation process converts a continuous time signal into a discrete time signal?
    • A. 

      Sampling

    • B. 

      Rectifying

    • C. 

      Oscillating

    • D. 

      Band limiting

  • 17. 
    How does synchronous transmission reduce the overhead cost of data transmissions?
    • A. 

      Communicates in parallel format

    • B. 

      Blocks many characters together for transmission

    • C. 

      Eliminates the control bits, so more message data can be sent

    • D. 

      Equipment to support synchronous transmission is far less expensive

  • 18. 
    What two error detection methods, when used together, are 98% effective in detecting errors?
    • A. 

      Checksum and cyclic redundancy check

    • B. 

      Longitude redundancy check and checksum

    • C. 

      Cyclic redundancy and vertical redundancy check

    • D. 

      Vertical redundancy and longitudinal redundancy check

  • 19. 
    Which statement describes an advantage of using fiber optic cable?
    • A. 

      The easy tap-ability of fiber optic cables present security risks

    • B. 

      Fiber optic cable has a higher attenuation than coaxial cable

    • C. 

      Electromagnetic fields do not affect fiber optic cables

    • D. 

      Nuclear radiation does not affect fiber optic cables

  • 20. 
    What type of buffer allows the fiber optic cable to be twisted or pulled with stress on the fiber?
    • A. 

      Ribbon

    • B. 

      Composite

    • C. 

      Tight tube

    • D. 

      Loose tube

  • 21. 
    Propagation of light as seen by Snell's law is known as
    • A. 

      Total internal reflection

    • B. 

      Refraction of light

    • C. 

      Light wavelengths

    • D. 

      Rays of incidence

  • 22. 
    What type of fiber is the least efficient, with the highest dispersion and has a core diameter of 30 µm to over 800 µm?
    • A. 

      Single-mode step-index fiber

    • B. 

      Single-mode graded-index fiber

    • C. 

      Multimode step-index fiber

    • D. 

      Multimode graded-index fiber

  • 23. 
    When you make a resistance measurement, how do you electrically isolate a resistor from a circuit?
    • A. 

      Remove power from the circuit

    • B. 

      Short both sides of the resistor

    • C. 

      Isolate both sides of the resistor

    • D. 

      Disconnect one side of the resistor

  • 24. 
    In which type of circuit would you measure the AC component of an output voltage where both AC and DC voltage levels exist?
    • A. 

      Filter

    • B. 

      Resonant

    • C. 

      Amplifier

    • D. 

      Differential

  • 25. 
    When you use the Fluke 8025A, which voltage range do you use to measure 50 volts DC?
    • A. 

      Volts AC

    • B. 

      Volts DC

    • C. 

      Millivolts AC

    • D. 

      Millivolts DC

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