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 'Foreman (Electrical), Assistant Manager (Electrical) etc - Industries & Commerce, The Kerala Ceramics Ltd etc ' And exam conducted in the year 2022. And Question paper code was '075/2022'. 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.
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A
A system produces an output for a unit step input.
12
5)82 + 58 +4)
The nature of the response is
(^^) undamped (B) under damped
(೮) critically damped (D) over damped
The peak time T, = 3 second for a system to which unit step input is applied. The
damping frequency in radians/second is
(A) 7 (B) 1.05
(൭ 0.95 (D) 0.64
೩5) + 40 Gs)
.جو 52+ 205 +5
The positional error co-efficient is
(A) 8 (B) 9
(C) 6 (D) 5
The open loop transfer function of a unity feedback control system is
1
SS) ടട
The closed loop transfer function will have poles at
(A) -3, -3 (8) 3+ 11
(൭ -3+11 رم 3
In type — 1 system, the velocity lag error is
(A) Inversely proportional to band width of the system.
(B) Directly proportional to the gain constant.
(C) Inversely proportional to the gain constant.
(D) Independent of gain constant.
Which of the following is true for Routh’s criterion ?
1. 1 gives an idea about absolute stability.
2. The degree of instability and means to avoid it is not indicated by Routh’s criterion.
3. [1 indicates the number and values of unstable roots.
(A) Both 1 &2 ௫ 80023
(©) Both! &3 (0) Allof1,2&3
The effects of adding poles and zeros can be determined quickly by
(^) Nicholas chart (B) Nyquist plot
(C) Root locus (D) Bode plot
[P.T.O.]