Previous Year Very Short Questions of MRE (DIPLOMA electronics and communication engineering 6th)

Microwave and radar engineering

Previous year question paper with solutions for Microwave and radar engineering

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  1. The Frequency range of K band is _____________.
  2. Magnetron is a ___________________ device.
  3. The IMPATT diode stands for _____________________________.
  4. A _____________ is a 2-port device which transmits microwave power in one direction only.
  5. A waveguide twist is used to change the ________________.
  6. The parabolic reflector antennas have gain of the order of ____________.
  7. The sky-waves are returned to the earth from the ionosphere due to phenomena of__________.
  8. In H-type T-junction, if 180⁰ out of phase signals are fed into two arms, the output obtained from the third arm (perpendicular) will be _____________.
  9. FMCW Radar stands for ________________________ Radar.
  10. In CW radar, the range of the target cannot be detected. (T/F)
  11. In CDMA, all the users are assigned different ____________.
  12. Expand RADAR
  13. K band lies in _____to_____GHz frequency range.
  14. Magnetron is a _____field device
  15. Expand IMPATT .
  16. _____mode cannot exist in Waveguide.
  17. Magic T is a ____port device.
  18. VSAT stand for______
  19. Dominant mode for Rectangular mode is TE ____and TM ____
  20. The input cavity in a Two cavity klystron is known as______
  21. RADAR RANGE EQUATION is________
  22. If a microwave device is 4 port device than its S matrix is of order of _______.
  23. MTI can measure ____of a target
  24. Wave guide act as ______filter
  25. Troposphere is ____KM from earth’s surface.
  26. ISOLATOR can be used as CIRCULATOR.(T/F)