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

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Free download in PDF Introduction to Radar General Knowledge Multiple Choice Questions(MCQs) & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
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(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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