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ECE :: Microwave Engineering

  1. __________ is a region of Electromagnetic spectrum having frequency ranging from 1GHz to 100 GHz
  2. A.
    Micro wave
    B.
    UV
    C.
    IR
    D.
    None of these

  3. Which of the following bands that comes under Microwave Band
  4. A.
    C
    B.
    D
    C.
    E
    D.
    all the above

  5. Which of the following is the main advantage of microwave
  6. A.
    Highly directive
    B.
    Moves at the speed of light
    C.
    Greater S/N ratio
    D.
    High penetration power

  7. Reflex klystron is a ______
  8. A.
    Amplifier
    B.
    Oscillator
    C.
    Attenuator
    D.
    Filter

  9. On which of the following principle does Klystron operates
  10. A.
    Amplitude Modulation
    B.
    Frequency Modulation
    C.
    Pulse Modulation
    D.
    Velocity Modulation

  11. In multicavity klystron additional cavities are inserted between buncher & catcher cavities to achieve
  12. A.
    Higher Gain
    B.
    Higher Efficiency
    C.
    Higher Frequency
    D.
    Higher Bandwidth

  13. Which of the following is one of the mode in Reflex Klystron
  14. A.
    Give same frequency but different transit time
    B.
    Are caused by spurious frequency modulation
    C.
    Are just for theoretical consideration
    D.
    Result from excessive transit time across resonator gap

  15. A space between two cavities in two cavity klystron is _______
  16. A.
    Drift space
    B.
    Free space
    C.
    Running space
    D.
    Normal space

  17. Magnetron is an _______
  18. A.
    Amplifier
    B.
    Oscillator
    C.
    Phase shifter
    D.
    Both phase shifter & amplifier

  19. Traveling Wave Tube is __________
  20. A.
    Oscillator
    B.
    Tuned Amplifier
    C.
    Wide Band Amplifier
    D.
    Both Amplifier & Oscillator