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 'Assistant Engineer (Electrical) - Kerala State Electricity Board Ltd' And exam conducted in the year 2023. And Question paper code was '225/2023'. 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.
53. Consider the following statements:
@ If an open-loop system is unstable, applying feedback will always improve its stability
Gi) fan open-loop system is subject to parameter variations, applying feedback will always
improve robustness.
Which of the following is correct answer?
(^) None of the above statements is true
(B) Statement (i) is true but statement (ii) is false
(C) Statement (ii) is true but statement (i) is false
(D) Both Statements are true
54. Identify the number of forward paths for a system between source node and output node
whose SFG is shown in figure. Where the source node is a node with outgoing branches and
output node is a node with only incoming signals:
(A) 10 (B) 9
(0 8 (0) 11
55. (-a+ jb) are the complex conjugate roots of the characteristic equation of a second order
system. Its damping coefficient and natural frequency will be respectively:
(A) هدهب (०२ + ८ +¢ (B) 0 41 a+b
4/० +© 40 + تم
(0 Sand Va? +8? (D) كب and a? +b?
402 + va? +B?
56. For 0<é< ا resonant peak “M,” is equal to:
V2
2
ധ ൨. ൯ —+—
221-22
_௨
aie
A 11 225/2028
[7.7.0.]
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