Kerala PSC Previous Years Question Paper & Answer
Page:15
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Instructor (Electronic Mechanic)' And exam conducted in the year 2023. And Question paper code was '081/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
B:-Velocity
C:-Force
D:-Displacement
Correct Answer:- Option-D
Question77:-Which device provides electrical isolation between input circuit and
output circuit?
A:-Optical sensor
B:-Photo diode
C:-Photo transistor
D:-Opto coupler
Correct Answer:- Option-D
Question78:-An OR gate is equivalent to two switches connected in
A:-Series
B:-Parallel
C:-Inverted
D:-Directly
Correct Answer:- Option-B
Question79:-The carry output of a two-input half-adder can be realised by using a
logic gate.
A:-NOT
B:-OR
C:-AND
D:-XOR
Correct Answer:- Option-C
Question80:-The Gray code equivalent of a 4-bit binary number 1010 is
A:-1011
B:-1111
C:-1001
D:-10101
Correct Answer:- Option-B
Question81:-The XNOR gate gives a high output when inputs are
A:-1 and 0
8:-0 200 1
C:-equal
D:-inverted
Correct Answer:- Option-C