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 ' Technician Grade II (Electronics)-Kerala Co-operative Milk Marketing Federation Ltd ' And exam conducted in the year 2022. And Question paper code was '010/2022'. 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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What is the output pulse frequency of the full wave rectifier with input frequency of 50 Hz?
(A) 40 Hz
) 100 Hz
(8) 60112
(D) 200 Hz
What is the name of the process of converting AC into DC voltage?
(ಹ) Inverting
(C) Amplifying
൯) Rectifying
(D) Demodulating
Forbidden energy gap at 0°K for Si and Ge respectively are :
(^) 0.5 eV and 0.7 eV
(C) 1.21 eV and 0.785 eV
൯) 1leVand 0.6 eV
(D) 0.72 eV and 0.785 eV
Which of the following will serve as a donor impurity in silicon?
(^) Boron
(C) Germanium
(B) Indium
(D) Antimony
The temperature coefficient of an intrinsic semiconductor is :
(A) Negative
(C) Like that of Metals
(B) Positive
(D) Zero
Current flow in a semiconductor depends on the phenomenon of :
(A) Drift
(C) Recombination
൯) Diffusion
(D) All of the Above
Rectification efficiency of a full wave bridge rectifier will be :
(A) 40.6%
(C) 95.8%
(B) 81.2%
(D) 60.8%
What is the meaning of first letter indicated in the transistor code number BC 107?
(A) Germanium material used
(C) Silicon material used
(B) Antimony material used
(D) Indium material used
When a reverse bias is applied to PN junction the width of the depletion layer?
(A) Remains Same
(C) Is Decreased
൯) Is Increased
(D) May Increase or Decrease
010/2022
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