Kerala PSC Previous Years Question Paper & Answer
Page:3
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Electronics Engineering (Govt Polytechni - Technical Education ' And exam conducted in the year 2021. And Question paper code was '004/2021'. 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.
004/2021
Total Marks : 100 Marks
Time : 1 hour and 15 minutes
५ _ 2४
1. If lim च्य = 20 and n is a positive integer then n is
#-32 4
(A) 3 (B) 5 (0) 7 ൯൬9
2. The slope of the normal to the curve y = 22° at the point whose x coordinate is 2
1 1
(A) -2 (8) -54 (0) 24 (>)
-1
3. The value of the integral f பி ൦ dx is
ധ ௭௩௦௫ ED +० © مم للحم (0) <+e
4 20+ ais
sec (25)
(A) 517 (ट) +¢ (8) sec(xt+e)+e (C) टचा (प्ट) +© (D) مها 2+ €) +e
5. = [€ integrating factor of the differential equation a 2 =sinx
1 1
(^) ¢ ® war Oy ©) 4
6. ൧ matrix X has a + b rows and 9 + 1 columns while the matrix Y has a - 2 rows and
a+2 columns. Both the matrix XY and YX exist. Then a and b are
(A) a=5,b=2 ൫ a=3,b=7 © a=3,b=2 று a=7,b=5
12 3
7. The value of the determinant | 3 2 5 | is 0, معطا is
k24
(A) 1 (B) 3 (6) 2 (D) 4
8. TFC, C, ९,, .... € denote the coefficients in the bionomial expansion of (1 + x)", then
ಆ 02+ ... + 0215
(20)! 2061 +1) 5
७) Ge ७ ಾ (0 awe? Oe
9. 2 tan! (1) + tan! (2) + tar (3) 15
(A) F ®) 3 © 0 رم -2
10. The foot of the perpendicular from (2, 3) to the line 2x + y— 3 =0 is
७० கி ७ (३३
ക
A _ 3 ~~ 004/2021
[P.T.O.]