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 'LINEMAN PUBLIC WORKS DEPARTMENT ELECTRICAL WING' And exam conducted in the year 2018. And Question paper code was '020/2018'. 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 Full wave bridge rectifier uses diodes.
(ಹಿ) 1 ® 2 © 3 D) 4
Hiysterisis loss is proportional to ۶
(ಹ) square of the frequency (8) frequency
(C) square of the thickness (D) thickness
The critical field resistance of a shunt generator should be
(ಹಿ) Greater than its shunt field resistance
(B) Smaller than its shunt field resistance
(9) Equal to the shunt field resistance
(D) None of these
The knee voltage/cut in voltage of a silicon diode is 5
@A) 021% ൫ 03V © 05V o 07V
The reciprocal of impedance is
(^) Susceptance (8) Conductance (C) Admittance (D) Resistance
The instrument used for measuring current in a current carrying conductor without
interrupting the circuit is
(A) MI ammeter رق Clamp on ammeter
(ಲ) Current transformer (D) Potential transformer
The application of inductor/ballast in fluorescent lamp circuit is to
(A) Increase the current at the time of starting
(3) limit the current through the lamp
(9) Reduce the induced ஊம்
(D) None of these
Which one of the following material must have negative temperature coefficient of
resistance ?
(ಹ) Copper (8) Brass (ಲ) Mica (D) Manganin
9 020/2018
{P.T.O}
