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 'Assistant Professor in Electrical and Electronics Engineering' And exam conducted in the year 2023. And Question paper code was '080/2023'. 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.
44. Match the following properties and applications of distance relays :
(0) Impedance relay (0) Voltage restrained directional relay ൫ Long length lines
Gi) Reactance relay Gi) Directional restrained over current relay (ii) Medium length lines
(iii) Mho relay (iii) Voltage restrained over current relay (iii) Short length lines
(A) @)-@)-Gi), 0-0-0, 0-00-61)
ॐ 0-0-0, (0-610-00, (1 ॥
(0) 0-60-0. (0-0-0, 60-0-61)
(0) 0-00-00. (0-00-61), 60-0-0
45. Sequence impedances of a star connected synchronous generator with neutral shorted to
ground are related to each other as :
(A) Z,>Z,>Z (த) وك < > 21
(0 1 > £ = 0 0) 2.52, > م
46. The values indicated on the single line diagram, as shown below, are the reactances in per
unit on a common system base. A three phase fault occurs at point ‘P’ at the middle of the
line. Determine the transfer reactance between generator bus and infinite bus :
Xa =J0.2
(A) 10 ൯ 21.1
(0) 71.2 (0) 71.3
47. Identify the correct statement referring to Specific Energy Consumption (SEC) of an electric
train:
(A) SEC increases with, increase in maximum speed and distance between the stops
(B) SEC increases with, increase in maximum speed and decrease in distance
between the stops
(C) SEC increases with, decrease in maximum speed and increase in distance
between the stops
(D) SEC decreases with, decrease in maximum speed and distance between the stops
A 11 080/2023
[7.7.0.]