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 'Draftsman Grade II (Electrical), Skilled Assistant Grade II, Electrician, Lineman in Kerala State Housing Board, PWD (Electrical Wing) etc' And exam conducted in the year 2023. And Question paper code was '113/2023'. 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.
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An incandescent lamp, hung at a height ‘h’ from a point ‘P’, directly below it, produces
an illumination ‘E’ at ‘P’. If the height was reduced by h what will be the new
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illumination at ‘P’ ?
A) 5 B) 16 C) 16E D) None of these
Which one of the following lamps operates at the best power factor ?
A) Fluorescent lamp B) Sodium vapour lamp
C) LED lamp D) Incandescent lamp
Which one among the following lighting schemes produces minimum glare ?
A) Direct lighting B) Semi direct lighting
C) Indirect lighting D) Semi indirect lighting
The voltage drop across an ideal diode when forward biased is
A) 0.7V 8) 0.3 ४ 0۷ D) None of these
In a DC power supply, a voltage regulator is used to
A) Keep the output DC voltage constant irrespective of variations in input voltage
B) Keep the output DC voltage constant irrespective of variations in load current
C) Both A) and B)
D) None of these
What happens when a zener diode is forward biased ?
A) Avalanche breakdown occurs B) Zener breakdown occurs
C) It blocks the flow of current D) None of these
In an L-section filter
A) Both inductor and capacitor are connected in series with respect to the load
B) Both inductor and capacitor are connected in parallel with respect to the load
C) Inductor is connected in series and capacitor is connected in parallel with
respect to the load
D) Inductor is connected in parallel and capacitor is connected in series with
respect to the load
Choose the incorrect statement regarding a pure semiconductor.
A) It behaves as a perfect insulator at absolute zero temperature
B) Its resistivity decreases with increase in temperature
C) It obeys Ohm’s law
D) It is also called intrinsic semiconductor
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