Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Police Constable (Telecommunications) - Kerala Police Service ' And exam conducted in the year 2022. And Question paper code was '089/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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The first woman cricketer to appear in six cricket world cups
A) Harman Preet Kaur B) Mithali Raj
C) Smrithi Mandana D) Jhulan Goswami
88-108 MHz frequency range is used for transmitting
A) TV signals 8) AMshort wave 9) FM D) Microwave
Line-of-sight communication uses
A) Ground wave B) Sky wave C) Space wave D) Surface wave
100% modulation is produced in AM when
A) Carrier amplitude equal to signal amplitude
B) Carrier amplitude exceeds signal amplitude
C) Carrier frequency equal to signal frequency
D) Carrier frequency exceeds signal frequency
n superheterodyne broadcast receiver the frequency of local oscillator is
A) Higher than the incoming signal B) Lower than the incoming signal
C) Equal to the incoming signal D) None of these
n frequency modulation
A) Amplitude of the carrier remains same
B) Frequency of the carrier varies in accordance with the amplitude of the modulating
signal
C) The no. of sidebands are infinite
D) All of the above
n AM transmission the frequency which is not transmitted is
A) Upper sideband B) Lower sideband
C) Carrier frequency D) Audio frequency
Pre-emphasis circuit is placed
A) After modulation circuit B) Before modulation circuit
C) Before deflection circuit D) After deflection circuit
Demodulation occurs in
A) Transmitting antenna B) Transmitter
C) Radio receiver D) None of these