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Introduction to Radar General Knowledge Quiz | Introduction to Radar General Knowledge Multiple Choice Questions(MCQs) & Answers

(1) Pulse repetition interval is :
[A] PW + PI
[B] PW – PI
[C] PW × PRF
[D] PW / PRF
Answer: PW + PI
(2) 40 GHz 300 GHz band is used in :
[A] satellites
[B] radar experiments
[C] police radios
[D] televisions
Answer: radar experiments

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(3) Radar is used for :
[A] ground mapping only
[B] airport surveillance only
[C] weather forecast only
[D] ground mapping, airport surveillance and weather forecast
Answer: ground mapping, airport surveillance and weather forecast
(4) VHF radar operates at a wavelength of :
[A] 10 m 1 m
[B] 1 m 30 m
[C] 1 m 10 m
[D] 3 cm
Answer: 10 m 1 m
(5) Radar resolution has the unit of :
[A] meter
[B] seconds
[C] degrees
[D] meter/second
Answer: meter
(6) Three dimensional radars determine :
[A] altitude, range and bearing
[B] range, bearing and elevation
[C] elevation, altitude and range
[D] elevation, azimuth and range
Answer: altitude, range and bearing
(7) ECM means :
[A] electronic commutative mechanism
[B] jamming
[C] electronic communication method
[D] electronic communication meeting
Answer: jamming
(8) Duplexer is :
[A] an oscillator
[B] a microwave switch
[C] an amplifier
[D] an active device
Answer: a microwave switch
(9) Radar X-band is :
[A] 8 GHz – 12 GHz
[B] 4 GHz – 8 GHz
[C] 2 GHz – 4 GHz
[D] 1 GHz – 2 GHz
Answer: 8 GHz – 12 GHz
(10) The minimum Doppler shift is :
[A] infinity
[B] zero
[C] transmitter frequency
[D] 100 KHz
Answer: zero
(11) Radar Ku band is :
[A] 8 GHz – 12 GHz
[B] 12 GHz – 18 GHz
[C] 1 GHz – 2 GHz
[D] 4 GHz – 8 GHz
Answer: 12 GHz – 18 GHz
(12) Pulse interval is :
[A] PRT-PW
[B] PRI+PW
[C] PRT-PRF
[D] PRF+PW
Answer: PRT-PW
(13) The unit of cross- range resolution is :
[A] degree
[B] meter
[C] meter2
[D] meter/second
Answer: meter
(14) Radar means :
[A] radio, detection and ranging
[B] radio, direction and ranging
[C] radio, data and ranging
[D] radio, display and ranging
Answer: radio, detection and ranging
(15) Radar gun :
[A] measures speed of target
[B] measures height of target
[C] tracks fast moving target
[D] controls the targets motion
Answer: measures speed of target
(16) Echo is :
[A] transmitted signal
[B] modulated signal
[C] demodulated signal
[D] reflected signal
Answer: reflected signal
(17) PRF is :
[A] 1/PI
[B] 1/PRT
[C] PW
[D] PW+PRT
Answer: 1/PRT
(18) The unit of Doppler shift is :
[A] hz
[B] meter
[C] degree
[D] second
Answer: hz
(19) Radar S-band is :
[A] 4 GHz – 8 GHz
[B] 2 GHz – 4 GHz
[C] 8 GHz – 12 GHz
[D] 12 GHz – 18 GHz
Answer: 2 GHz – 4 GHz
(20) Radar :
[A] detects only stationary objects
[B] detects only moving targets
[C] detects only incoming targets
[D] detects only stationary and moving targets
Answer: detects only stationary and moving targets

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