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 Electrical and Electronics Engineering TechnicalEducation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '131/2023'. 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.
6. J (cos? x —sin® x) dx equals:
(A) xt+e (3)
sin 2x
2
© - 0)
7. Solution of vx dy + Jy dx =Ois:
८५ + + +> = ८ ®) vx -y =e
3 3 1 1
( x? +y? =e (D) —+—~=c
vx vy
8. Derivative of sin“'(sin x) is:
(A) 1 ൯൩ tanx
(0) -1 ൯൩) 02
9. Slope of normal to the curve x = 22”, y = 2¢ att =1is:
ಉ 2 0) +
7 2
© 2 م =
7 2
10. Which of the following is true?
(^) Every differentiable function is continuous
(B)_ Every continuous function is differentiable
(C) sin 8 is continuous at x = 0
x
(D) | x | is differentiable at x =0
11. Workability of fresh concrete is measured by :
(^) Flexure test (B) Compaction test
(C) Compression test (D) Slump test
12. Increase in volume of a given mass of sand due to the presence of moisture in it is termed as :
(4) Specific gravity (B) Bulking
(C) Bulk density ൯) Porosity
131/2023 4 A