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 'Lecturer in Electronics and Instrumentation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '121/2023/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.
FINAL ANSWER KEY
Question 121/2023/0L
Paper Code:
Category 146/2022
Code:
Exam: Lecturer in Electronics and Instrumentation
(Polytechnics)
Date of Test 24-07-2023
Department Technical Education
Question1:-Let A, P and Q are invertible square matrices with o=P-4p . Then 4” is
A:-P“19"P"
8 معودم:
0.11...
D:-Po"pP
Correct Answer:- Option-C
Question2:-Let the matrix[ 3, पर 3] Det(A) denote the determinant of A. Then Det (45)=
A:--3
8:-0
C:--1
D:-25
Correct Answer:- Option-B
Question3:-If P and Q are the coefficient of # in the expansion of a+2)* and as",
Then @ is
A:-2
B:-2/3
C:-0
D:--3/2
Correct Answer:-Question Cancelled
Question4:-A,B, 45° are the angles in a triangle such that Cot A+ Cot B + Cot 45° =
CotA CotB Cot 45°. Then tan(A+B) is
A:-1
8:-०
C:--1
D:-1/2
Correct Answer:- Option-C
Question5:-Solution of the system of equation «+y+z=6y+3z=1,2-2+z=0 is
A:-x=1, y=-2, 2-3