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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Effect of series inductance and shunt capacitance of transmission lines are faced in
A) EHVAC Transmission
B) HVDC Transmission
C) Both EHVAC and HVDC transmissions
D) None of these
In a3 phase 4 wire 41 ao V system, a 40 W lamp is connected across R-phase
and neutral and a 100 W lamp is connected across Y-phase and neutral.
What happens when the neutral is disconnected ?
A) Short circuit occurs
B) 40 W lamp glows brighter than 100 W lamp
C) 100 W lamp glows brighter than 40 W lamp
)
D) None of these
Pick the odd one out.
A) Lighting arrester B) Ground wires C) Earthing screen D) Guard wires
Which one among the following factors does not determine the selection of size of
conductor for overhead transmission ?
A) KVA rating of transformer used B) Length of transmission line
C) Power factor D) Power to be carried by the line
In India, the frequency of the secondary distribution voltage can vary from
A) 49.5 Hz to 50.5 Hz B) 49 Hz to 51 Hz
C) 48.5 Hz to 51.5 Hz D) 49.5 Hz to 51.5 Hz
Reactors connected in series with the feeders (feeder reactors) are used to
A) Improve the power factor
B) Increase the power transmission capability of transmission lines
C) Increase the voltage regulation
)
D) Limit the current in case of short circuit