Es&t018

10 Questions | Total Attempts: 316

SettingsSettingsSettings
Please wait...
Es&t018

This QUIZ is made or by product  of my continuous research & study about Electronics Engineering to help the Electronics Engineer/Technician Aspirants in passing the Board Examinations.


Questions and Answers
  • 1. 
    The microwave frequency range is considered to start at:
    • A. 

      100 MHz

    • B. 

      1 GHz

    • C. 

      10 GHz

    • D. 

      100 GHz

  • 2. 
    The UHF range is:
    • A. 

      Below the microwave range

    • B. 

      Inside the microwave range

    • C. 

      Above the microwave range

    • D. 

      Same as the microwave range

  • 3. 
    The dominant mode of a waveguide depends on:
    • A. 

      The shape of the waveguide

    • B. 

      The power level of the signal

    • C. 

      The point of signal injection

    • D. 

      None of the above

  • 4. 
    The dominant mode of a rectangular waveguide is:
    • A. 

      TE01

    • B. 

      TM01

    • C. 

      TE10

    • D. 

      TM10

  • 5. 
    The dominant mode of a circular waveguide is:
    • A. 

      TE 01

    • B. 

      TM 01

    • C. 

      TE 11

    • D. 

      TM11

  • 6. 
    Circular waveguides use TM 01 mode because:
    • A. 

      It is dominant

    • B. 

      Of its circular symmetry

    • C. 

      It is the only mode possible

    • D. 

      It is more efficient

  • 7. 
    The characteristic impedance of a waveguide:
    • A. 

      Is fixed

    • B. 

      Depends on the frequency it carries

    • C. 

      Depends on the longer dimension of its cross section

    • D. 

      Both b and c

  • 8. 
    Power can be coupled into or out of a waveguide:
    • A. 

      With a magnetic field probe

    • B. 

      With an electric field probe

    • C. 

      Through a hole in the waveguide

    • D. 

      All of the above

  • 9. 
    Directional couplers for waveguides are characterized by:
    • A. 

      Their insertion loss

    • B. 

      Their coupling specification

    • C. 

      Their directivity

    • D. 

      All of the above

  • 10. 
    Striplines and microstrips are used to:
    • A. 

      Couple sections of waveguide

    • B. 

      Couple waveguides to antennas

    • C. 

      Couple components on a circuit board

    • D. 

      None of the above