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 'Workshop Instructor/ Demonstrator/ Instructor Grade II in Electronics and Communication' And exam conducted in the year 2023. And Question paper code was '058/2023'. 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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of a receiver is its ability to reproduce the exact replica of the transmitted
signals at the receiver output.
A) Sensitivity B) Fidelity
C) Selectivity D) Noise figure
Pre-emphasis in FM system involves
A) Compression of the modulating signal
B) Expansion of the modulating signal
C) Amplification of lower frequency components of the modulating signal
D) Amplification of higher frequency components of the modulating signal
Which oscillator is used as a local oscillator in radio receiver ?
A) Phase shift B) Wien bridge
C) Hartley D) Crystal
The image frequency rejection becomes poor when the intermediate frequency is
A) Low B) Very high
C) Moderate D) High
The smallest change in a measured variable to which an instrument will respond is
A) Accuracy B) Resolution
C) Precision D) Sensitivity
A moving coil galvanometer is made into a dc ammeter by connecting
A) a low resistance across the meter
8) a high resistance in series with the meter
C) a pure inductance across the meter
D) acapacitor in series with the meter
A multimeter is used for the measurement of the following.
Both ac and de voltage.
Both ac and de current.
Resistance.
Frequency.
Power.
A) 1,2 and 4 B) 1, 2800 5
@) 1, 3 810 5 0) 1, 2 8103
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