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 'Overseer Gr II (Electrical), Electrician, Workshop Instructor/ Instructor Gr II/ Demonstrator in Electrical Engineering in Universities, KSFDC, Technical Education ' And exam conducted in the year 2023. And Question paper code was '075/2023'. 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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075/23
Which of the following relay have inverse time current characteristic ?
A) Time delay relay B) Over current relay
C) Frequency response relay D) None of the above
A limit switch is used to control
A
B
0
0
) Linear to and fro motion
( Circular motion
) Both A) and B)
) None of the above
A three phase induction motor is said to be operated in single phasing condition when
i. Single phase is supplied to the motor.
ர். One of the three fuses on supply line blows off.
iii. Only two phases are supplied to the motor.
A) Onlyi 8) Only iii
C) All of these (i, ii and iii) D) Only ii and iii
Which of the following single phase electric drive offers four quadrant operation ?
A) Full converter drive B) Dual converter drive
C) Semi converter drive D) All of the above
Which of the following speed control method is not applicable for SCIM drives ?
A) Stator frequency control
B) Stator voltage control
C) VVVF control
)
D) Slip energy recovery control
Which of the following device is most suitable for Volts/Hertz speed control of high power
induction motor drive ?
A) DC chopper B) Boost converter
C) Cyclo converter D) None of these