Brunei Darussalam: Trivia Quiz On Amateur Radio!

17 Questions | Total Attempts: 63

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Brunei Darussalam: Trivia Quiz On Amateur Radio!

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Questions and Answers
  • 1. 
    In superhetrodyne receiver, which stage provide the most gain and selectivity?
    • A. 

      Mixer

    • B. 

      R.F. Amplifiers

    • C. 

      I.F. Amplifiers

    • D. 

      A.F. Amplifiers

  • 2. 
    Which of the following is not an amateur band
    • A. 

      51.20Mhz

    • B. 

      144.15Mhz

    • C. 

      432.29Mhz

    • D. 

      1370.77Mhz

  • 3. 
    The power amplifier of a transmitter is operated in linear mode. The output will
    • A. 

      Be generated with the minimum power supply consumption

    • B. 

      Only be suitable for morse and data

    • C. 

      Contain less harmonics then the input

    • D. 

      Be an amplified replica of the input waveform

  • 4. 
    The essential requirement for a log book is that it must have...
    • A. 

      No fewer than 50 pages

    • B. 

      Be obtained from the City and Guilds

    • C. 

      Not be loose leaf

    • D. 

      Be loose leaf

  • 5. 
    In which waveband is there a low powder segment?
    • A. 

      40 m

    • B. 

      30 m

    • C. 

      160 m

    • D. 

      2 m

  • 6. 
    A licensed amateur may use his/her station for which non profit making organisation?
    • A. 

      A Social Club for Ex Servicemen

    • B. 

      An organisation for the furtherance of Amateur Radio

    • C. 

      A church organisation

    • D. 

      A political organisation they support

  • 7. 
    The licensee shall test his transmissions for radiation of spurious emission and keep a record of these tests?
    • A. 

      With an oscilloscope

    • B. 

      Once a month

    • C. 

      Every six month

    • D. 

      From time to time

  • 8. 
    A common cause of fading in the H.F. bands is...
    • A. 

      Variation in receiver sensitivity

    • B. 

      Clouds passing overhead

    • C. 

      Movement of the antenna

    • D. 

      Summation of signals arriving from different paths

  • 9. 
    How can the power output of an amateur station be substantially increased?
    • A. 

      By improving the SWR

    • B. 

      By the use of an Aerial Tuning Unit (A.T.U)

    • C. 

      Use of a linear power amplifier

    • D. 

      By switching to Upper Sideband

  • 10. 
    Band planning
    • A. 

      Minimize Interference between different modes

    • B. 

      Is a license condition which must be compiled with

    • C. 

      Is only applicable in the 2 meter band

    • D. 

      Is only applicable for SSTV and digital modes

  • 11. 
    A station isolation switch is installed so that in the event of electric shock power can be switched off. The most important feature of the switch is...
    • A. 

      Should be illuminated with the word danger on it

    • B. 

      Should be red in color

    • C. 

      Function and position known to all household members

    • D. 

      Must be mounted out of the reach of children

  • 12. 
    A transmitter has an output of 400 watts. What is this in dbW?
    • A. 

      4000 dbw

    • B. 

      14 dbw

    • C. 

      23 dbw

    • D. 

      26 dbw

  • 13. 
    A Power transformer cannot...
    • A. 

      Increase the supply voltage

    • B. 

      Increase the supply current

    • C. 

      Increase the supply power

    • D. 

      Increase the impedance of the supply

  • 14. 
    If a strong overloads the first stages of a receiver what control is best adjusted?
    • A. 

      Notch Filter

    • B. 

      R.F Gain

    • C. 

      A.F. Gain

    • D. 

      Squelch

  • 15. 
    A pi-network utilizes two capacitors and a coil what type of filter is it?
    • A. 

      Low Pass Filter

    • B. 

      High Pass Filter

    • C. 

      Band Pass Filter

    • D. 

      Band -stop Filter

  • 16. 
    A Public address system is experiencing breakthrough from a V.H.F transmission. A suitable R.F decoupling component is?
    • A. 

      100 uF aluminium electrolytic capacitor

    • B. 

      NF Ceramic Capacitor

    • C. 

      10 mF Tantalum bead capacitor

    • D. 

      0.1 pf Silvered Mica capacitor

  • 17. 
    Desensitising of a T.V receiver is caused when?
    • A. 

      The antenna is too high

    • B. 

      There are strong R.F. signals in close proximity

    • C. 

      The brightness of the TV is excessive

    • D. 

      The rig is being operated out of band