Test your knowledge :

  1. Radar is used for --------------
    2. Ground mapping only
    Weather forecast only
    Airport surveillance only
    Ground mapping, airport surveillance and weather forecast
  2. Duplexer is --------------
    3. An oscillator
    A microwave switch
    An amplifier
    Detector
  3. Radar means -----------
    4. Radio, detection and ranging
    Radio, data and ranging
    Radio, direction and ranging
    Radio, display and ranging
  4. Echo is -------------
    5. Transmitted signal
    Reflected signal
    Modulated signal
    Demodulated signal
  5. Radar can detect -----------
    6. Stationary objects
    Moving targets
    Incoming targets
    Stationary and moving targets
  6. ------------- can determine targets shape & size as well?
    7. Transmitter
    Receiver
    Optical Fibre
    Radar
  7. RADAR is an ________________ sensor?
    8. Electro-magnetic
    Electric
    Magnetic
    Static
  8. Pulse radar operating at 10GHz frequency has an antenna with a gain of 28 dB and a transmitted power of 2kW. If it is desired to detect a target of cross section 12m2, and the minimum detectable signal is -90 dBm, the maximum range of the radar is:
    9. 8114 m
    2348 m
    1256 m
    4563 m
  9. A -------------- determines the target range by measuring the round trip time of a pulsed microwave signal.
    10. Pulse radar
    Doppler radar
    Cross section radar
    None of the mentioned
  10. The radar in which both transmission and reception is done using the same antenna are called:
    11. Dipole radar
    Monopole radar
    Bistatic radar
    Monostatic radar
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