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-PWD (Electrical Wing) ' And exam conducted in the year 2021. And Question paper code was '131/2021'. 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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Skin effect of a conductor
(A) Increases with increase in diameter
(B) Inversely proportional to frequency
(C) More in stranded condition
(D) Less in solid condition
Which is provided to prevent the entry of moisture in UG cables?
(A) Bedding (B) Armouring
(C) Metallic sheath (D) Serving
Value of fusing factor is always
(A) less than fusing current (B) less than one
(C) more than fusing current (D) greater than one
Which effect is accompanied by the production of ozone in OH line?
(A) Skin effect (B) Corona effect
(C) Proximity effect (D) Ferranti effect
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Sag in overheadline S = گت Here 1' stands for
(A) Length of Pole (B) Length of conductor
(C) Length of span (D) Length of cross arm
Buchholz relay is located
(A) In the main tank
(B) In between conservator tank and main tank
(C) In the breather
(D) In between conservator and breather
It gives support to the pole against falling
(A) Lightning arrestor (B) Stay set
(C) Cross arm (D) Earth wire
Most of the substations are used to
(A) Increase the power (B) Change the frequency
(C) Change the voltage (D) Decrease the power
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