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 'Tradesman (Electronics andInstrumentation' And exam conducted in the year 2023. And Question paper code was '077/2023'. 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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077/23
In the following which is not the characteristics of emitter follower circuit ?
A)
B
0
D
No voltage gain
High current gain and power gain
Low input impedance and high output impedance
Input and output ac voltages are in phase
How many active devices are there in a single stage transistor amplifier ?
A) 1 B) 2 04 D) 7
The term not related to FET is
A) Amplification factor B) AC drain resistance
C) Intrinsic stand-off ratio D) Transconductance
UJT cannot be used
A) As an oscillator B) In trigger circuits
C) As an amplifier D) In pulse and voltage sensing circuits
In the following components which can be used as controlled bidirectional switch ?
A) Silicon controlled rectifier B) Diac
C) DPDT D) Triac
2’s complement of the binary number 00010110
A) 11101001 B) 11101010 C) 00010111 D) 00010110
In the following logic gates, which cannot be used as an inverter ?
A) NOT GATE B) AND GATE
C) NAND GATE D) NOR GATE
According to distributive law
A) A=A+A B) A+(B+C)=(A+B)+C
C)A+B=B+A 0) A(B+C) =A.B+AC
For a full adder, determine the output for the input A = 1, B= 0, and carry in=1
A) Sum = 0 with carry of 0 B) Sum =0 with carry of 1
C) Sum = 1 with carry of 0 D) Sum = 1 with carry of 1